Working, before adding low-elevation*alpha losses

1893ac24 · Andrey Filippov · 9a499c0a · 1893ac24 · 1893ac24 · 1893ac24
Commit 1893ac24 authored Nov 23, 2024 by Andrey Filippov
3 changed files
--- a/src/main/java/com/elphel/imagej/tileprocessor/IntersceneMatchParameters.java
+++ b/src/main/java/com/elphel/imagej/tileprocessor/IntersceneMatchParameters.java
@@ -31,6 +31,7 @@ import java.util.StringTokenizer;
 import com.elphel.imagej.common.GenericJTabbedDialog;
 import com.elphel.imagej.orthomosaic.ComboMatch;
+import com.elphel.imagej.vegetation.VegetationLMA;
 public class IntersceneMatchParameters {
 	public static String [] MODES3D = {"RAW", "INF", "FG", "BG"}; // RAW:-1
@@ -755,6 +756,8 @@ min_str_neib_fpn	0.35
 	public boolean   terr_fit_alpha =         true;  // adjust vegetation alpha pixels
 	public boolean   terr_fit_scenes =        true;  // adjust scene offsets (start from 0 always?)
 	public boolean   terr_fit_elevations =    false; // adjust elevation pixels (not yet implemented)
+	public boolean [] terr_fit_disable = new boolean [VegetationLMA.TVAO_TYPES];
 	public double    terr_max_warp =          1.8;
 	public int       terr_max_elevation =     22;    // maximal offset to consider when looking for vegetation influence
@@ -807,13 +810,22 @@ min_str_neib_fpn	0.35
 	public double    terr_hifreq_weight =     10.0; // 22.5; //  0 - do not use high-freq. Relative weight of laplacian components differfences to the DC ones
 	public double    terr_terr_corr =          1.0; // relative weight of average mismatch between images and model (terrain corrections)
 	public double    terr_reg_weights =        0.25; // fraction of the total weight used for regularization
 	public double    terr_lambda =             5.0;  // 
 	public double    terr_lambda_scale_good =  0.5;
 	public double    terr_lambda_scale_bad =   8.0;
 	public double    terr_lambda_max =      1000;
 	public double    terr_rms_diff =           1e-8; // 0.0001; virtually forever
 	public int       terr_num_iter =          25;    // 100;
+// second run
+	public boolean   terr_recalc_weights =    false; // recalculate weight depending on terrain visibility
+	public double    terr_recalc_opaque =      0.9;  // above is opaque  
+	public double    terr_recalc_pedestal =    0.05; // weight of opaque tiles
+	public double    terr_recalc_frac =        0.5;  // discard transparency below this fraction of the maximal one
+	public double    terr_recalc_dist =        1.0;  // increase weight for far pixels (double if scale differece == this)
+	public boolean   terr_recalc_average =    false; // apply transparency to average mismatch
 	// combine  parameters
 	public int       terr_border_width =       6;
 	public boolean   terr_render_open =        true; // render open areas (no vegetation offset)
@@ -2048,8 +2060,10 @@ min_str_neib_fpn	0.35
 		gd.addCheckbox    ("Adjust vegetation",    terr_fit_veget,     "Adjust vegetation pixels.");
 		gd.addCheckbox    ("Adjust alpha",         terr_fit_alpha,     "Adjust vegetation alpha pixels.");
 		gd.addCheckbox    ("Adjust scene offsets", terr_fit_scenes,    "Adjust scene offsets (start from 0 always?).");
-		gd.addCheckbox    ("Adjust elevation",     terr_fit_elevations,"Adjust elevation pixels (not yet implemented).");
+		gd.addCheckbox    ("Adjust elevation",     terr_fit_elevations,"Adjust elevation pixels.");
+		for (int i = 0; i < terr_fit_disable.length; i++) {
+			gd.addCheckbox    ("Skip "+VegetationLMA.TVAO_NAMES[i],   terr_fit_disable[i],"Skip adjustment of "+VegetationLMA.TVAO_NAMES[i]+".");
+		}
 		gd.addNumericField("Maximal warp",         terr_max_warp, 5,7,"pix", 	"(1.8) Do not use scenes where distance between vegetation projection exceeds this.");
 		gd.addNumericField("Min elevation/offset", terr_max_elevation, 0,3,"pix","Maximal offset to consider when looking for vegetation influence.");
@@ -2100,7 +2114,16 @@ min_str_neib_fpn	0.35
 		gd.addNumericField("Lambda scale on bad",  terr_lambda_scale_bad, 5,7,"","Scale lambda if RMSE worsened.");
 		gd.addNumericField("Lambda max to fail",   terr_lambda_max, 5,7,"",     "Fail if lambda gets larger than that.");
 		gd.addNumericField("RMSE difference",      terr_rms_diff, 10,12,"",     "Exit if RMSE improvement is lower.");
-		gd.addNumericField("(Maximal) iterations", terr_num_iter, 0,3,"", 	    "Maximal number of LMA iterations.");
+		gd.addNumericField("Maximal iterations",   terr_num_iter, 0,3,"", 	    "Maximal number of LMA iterations.");
+		gd.addMessage     ("Second LMA run");
+		gd.addCheckbox    ("Recalculate weighths", terr_recalc_weights,         "Recalculate weights depending on terrain visibility.");
+		gd.addNumericField("Opaque alpha",         terr_recalc_opaque, 5,7,"", "Alpha above his means opaque.");
+		gd.addNumericField("Opaque weight",        terr_recalc_pedestal, 5,7,"","Relative weight of opaque tiles.");
+		gd.addNumericField("Transparency fraction",terr_recalc_frac, 5,7,"","Discard transparency below this fraction of the maximal one.");
+		gd.addNumericField("Transparency distance",terr_recalc_dist, 5,7,"","Increase weight for far pixels (double if scale differece == this).");
+		gd.addCheckbox    ("Transparency average", terr_recalc_average,         "Apply transparency to average mismatch.");
 		gd.addMessage     ("Combining LMA results segments");
 		gd.addNumericField("Overlap width",        terr_border_width, 0,3,"","Width of the inter-tile oiverlap border.");
@@ -2774,6 +2797,10 @@ min_str_neib_fpn	0.35
 		terr_fit_scenes =          gd.getNextBoolean();// boolean
 		terr_fit_elevations =      gd.getNextBoolean();// boolean
+		for (int i = 0; i < terr_fit_disable.length; i++) {
+			terr_fit_disable[i] =      gd.getNextBoolean();// boolean
+		}
 		terr_max_warp =            gd.getNextNumber();// double 
 		terr_max_elevation = (int) gd.getNextNumber();// int
@@ -2820,15 +2847,22 @@ min_str_neib_fpn	0.35
 		terr_rms_diff =            gd.getNextNumber();// double 
 		terr_num_iter =      (int) gd.getNextNumber();// int    
-		terr_border_width =  (int) gd.getNextNumber();// int    
+		terr_recalc_weights =      gd.getNextBoolean();// boolean
+		terr_recalc_opaque =       gd.getNextNumber(); // double 
+		terr_recalc_pedestal =     gd.getNextNumber(); // double 
+		terr_recalc_frac =         gd.getNextNumber(); // double 
+		terr_recalc_dist =         gd.getNextNumber(); // double 
+		terr_recalc_average =      gd.getNextBoolean();// boolean
+		terr_border_width =  (int) gd.getNextNumber(); // int    
 		terr_render_open =         gd.getNextBoolean();// boolean
 		terr_render_no_alpha =     gd.getNextBoolean();// boolean
-		terr_alpha_min =           gd.getNextNumber();// double 
+		terr_alpha_min =           gd.getNextNumber(); // double 
-		terr_alpha_max =           gd.getNextNumber();// double 
+		terr_alpha_max =           gd.getNextNumber(); // double 
-		terr_weight_opaque =       gd.getNextNumber();// double
+		terr_weight_opaque =       gd.getNextNumber(); // double
-		terr_boost_render =        gd.getNextNumber();// double
+		terr_boost_render =        gd.getNextNumber(); // double
-		terr_max_render =          gd.getNextNumber();// double
+		terr_max_render =          gd.getNextNumber(); // double
-		terr_num_exaggerate = (int)gd.getNextNumber();// int    
+		terr_num_exaggerate = (int)gd.getNextNumber(); // int    
 		terr_threshold_terrain =   gd.getNextNumber();// double 
 		terr_min_max_terrain =     gd.getNextNumber();// double 
@@ -3463,7 +3497,10 @@ min_str_neib_fpn	0.35
 		properties.setProperty(prefix+"terr_fit_alpha",              terr_fit_alpha+"");          // boolean
 		properties.setProperty(prefix+"terr_fit_scenes",             terr_fit_scenes+"");         // boolean
 		properties.setProperty(prefix+"terr_fit_elevations",         terr_fit_elevations+"");     // boolean
+		for (int i = 0; i < terr_fit_disable.length; i++) {
+			String prop_name = prefix+"terr_fit_disable_"+VegetationLMA.TVAO_NAMES[i];
+			properties.setProperty(prop_name,                        terr_fit_disable[i]+"");     // boolean
+		}
 		properties.setProperty(prefix+"terr_max_warp",               terr_max_warp+"");           // double 
 		properties.setProperty(prefix+"terr_max_elevation",          terr_max_elevation+"");      // int
 		properties.setProperty(prefix+"terr_min_scenes",             terr_min_scenes+"");         // int
@@ -3507,7 +3544,14 @@ min_str_neib_fpn	0.35
 		properties.setProperty(prefix+"terr_lambda_scale_bad",       terr_lambda_scale_bad+"");   // double 
 		properties.setProperty(prefix+"terr_lambda_max",             terr_lambda_max+"");         // double 
 		properties.setProperty(prefix+"terr_rms_diff",               terr_rms_diff+"");           // double 
-		properties.setProperty(prefix+"terr_num_iter",               terr_num_iter+"");           // int    
+		properties.setProperty(prefix+"terr_num_iter",               terr_num_iter+"");           // int
+		properties.setProperty(prefix+"terr_recalc_weights",         terr_recalc_weights+"");     // boolean
+		properties.setProperty(prefix+"terr_recalc_opaque",          terr_recalc_opaque+"");      // double 
+		properties.setProperty(prefix+"terr_recalc_pedestal",        terr_recalc_pedestal+"");    // double 
+		properties.setProperty(prefix+"terr_recalc_frac",            terr_recalc_frac+"");        // double 
+		properties.setProperty(prefix+"terr_recalc_dist",            terr_recalc_dist+"");        // double 
+		properties.setProperty(prefix+"terr_recalc_average",         terr_recalc_average+"");     // boolean
 		properties.setProperty(prefix+"terr_border_width",           terr_border_width+"");       // int    
 		properties.setProperty(prefix+"terr_render_open",            terr_render_open+"");        // boolean
@@ -4170,7 +4214,10 @@ min_str_neib_fpn	0.35
 		if (properties.getProperty(prefix+"terr_fit_alpha")!=          null) terr_fit_alpha=Boolean.parseBoolean(properties.getProperty(prefix+"terr_fit_alpha"));
 		if (properties.getProperty(prefix+"terr_fit_scenes")!=         null) terr_fit_scenes=Boolean.parseBoolean(properties.getProperty(prefix+"terr_fit_scenes"));
 		if (properties.getProperty(prefix+"terr_fit_elevations")!=     null) terr_fit_elevations=Boolean.parseBoolean(properties.getProperty(prefix+"terr_fit_elevations"));
+		for (int i = 0; i < terr_fit_disable.length; i++) {
+			String prop_name = prefix+"terr_fit_disable_"+VegetationLMA.TVAO_NAMES[i];
+			if (properties.getProperty(prop_name)!=                    null) terr_fit_disable[i]=Boolean.parseBoolean(properties.getProperty(prop_name));
+		}
 		if (properties.getProperty(prefix+"terr_max_warp")!=           null) terr_max_warp=Double.parseDouble(properties.getProperty(prefix+"terr_max_warp"));
 		if (properties.getProperty(prefix+"terr_max_elevation")!=      null) terr_max_elevation=Integer.parseInt(properties.getProperty(prefix+"terr_max_elevation"));
 		if (properties.getProperty(prefix+"terr_min_scenes")!=         null) terr_min_scenes=Integer.parseInt(properties.getProperty(prefix+"terr_min_scenes"));
@@ -4217,6 +4264,13 @@ min_str_neib_fpn	0.35
 		if (properties.getProperty(prefix+"terr_rms_diff")!=           null) terr_rms_diff=Double.parseDouble(properties.getProperty(prefix+"terr_rms_diff"));
 		if (properties.getProperty(prefix+"terr_num_iter")!=           null) terr_num_iter=Integer.parseInt(properties.getProperty(prefix+"terr_num_iter"));
+		if (properties.getProperty(prefix+"terr_recalc_weights")!=     null) terr_recalc_weights=Boolean.parseBoolean(properties.getProperty(prefix+"terr_recalc_weights"));
+		if (properties.getProperty(prefix+"terr_recalc_opaque")!=      null) terr_recalc_opaque=Double.parseDouble(properties.getProperty(prefix+"terr_recalc_opaque"));
+		if (properties.getProperty(prefix+"terr_recalc_pedestal")!=    null) terr_recalc_pedestal=Double.parseDouble(properties.getProperty(prefix+"terr_recalc_pedestal"));
+		if (properties.getProperty(prefix+"terr_recalc_frac")!=        null) terr_recalc_frac=Double.parseDouble(properties.getProperty(prefix+"terr_recalc_frac"));
+		if (properties.getProperty(prefix+"terr_recalc_dist")!=        null) terr_recalc_dist=Double.parseDouble(properties.getProperty(prefix+"terr_recalc_dist"));
+		if (properties.getProperty(prefix+"terr_recalc_average")!=     null) terr_recalc_average=Boolean.parseBoolean(properties.getProperty(prefix+"terr_recalc_average"));
 		if (properties.getProperty(prefix+"terr_border_width")!=       null) terr_border_width=Integer.parseInt(properties.getProperty(prefix+"terr_border_width"));
 		if (properties.getProperty(prefix+"terr_render_open")!=        null) terr_render_open=Boolean.parseBoolean(properties.getProperty(prefix+"terr_render_open"));
 		if (properties.getProperty(prefix+"terr_render_no_alpha")!=    null) terr_render_no_alpha=Boolean.parseBoolean(properties.getProperty(prefix+"terr_render_no_alpha"));
@@ -4846,8 +4900,8 @@ min_str_neib_fpn	0.35
 		imp.terr_fit_veget =                     this.terr_fit_veget;                           
 		imp.terr_fit_alpha =                     this.terr_fit_alpha;                           
 		imp.terr_fit_scenes =                    this.terr_fit_scenes;                           
-		imp.terr_fit_elevations =                this.terr_fit_elevations;                           
+		imp.terr_fit_elevations =                this.terr_fit_elevations;
+		imp.terr_fit_disable =                   this.terr_fit_disable.clone();
 		imp.terr_max_warp =                      this.terr_max_warp;
 		imp.terr_max_elevation =                 this.terr_max_elevation;
 		imp.terr_min_scenes =                    this.terr_min_scenes;
@@ -4893,6 +4947,13 @@ min_str_neib_fpn	0.35
 		imp.terr_rms_diff =                      this.terr_rms_diff;                           
 		imp.terr_num_iter =                      this.terr_num_iter;                           
+		imp.terr_recalc_weights =                this.terr_recalc_weights;                           
+		imp.terr_recalc_opaque =                 this.terr_recalc_opaque;                           
+		imp.terr_recalc_pedestal =               this.terr_recalc_pedestal;
+		imp.terr_recalc_frac =                   this.terr_recalc_frac;
+		imp.terr_recalc_dist =                   this.terr_recalc_dist;
+		imp.terr_recalc_average =                this.terr_recalc_average;
 		imp.terr_border_width =                  this.terr_border_width;                           
 		imp.terr_render_open =                   this.terr_render_open;                           
 		imp.terr_render_no_alpha =               this.terr_render_no_alpha;                           

--- a/src/main/java/com/elphel/imagej/vegetation/VegetationLMA.java
+++ b/src/main/java/com/elphel/imagej/vegetation/VegetationLMA.java
@@ -29,6 +29,7 @@ import ij.io.FileSaver;
 public class VegetationLMA {
 	public static final String PAR_EXT =            ".par-tiff";
+	public static final String [] TVAO_NAMES = {"TERRAIN","VEGETATION","ALPHA","ELEVATION","SCENE_OFFSET"}; 
 	public static final int TVAO_TERRAIN =          0;
 	public static final int TVAO_VEGETATION =       1;
 	public static final int TVAO_ALPHA =            2;
@@ -75,23 +76,31 @@ public class VegetationLMA {
 	private VegetationModel   vegetationModel = null;
 	private int [][]          par_index;       // indices -  [0..4][full_pixel] - same as for tvao, value - parameter index
 	private int [][]          par_rindex;      // parameter -> pair of type (0..4) and full window pixel index
-	private int               num_pars_terrain; 
+	private int []            num_pars = new int [TVAO_TYPES];
-	private int               num_pars_vegetation; 
+	private int []            ind_pars = new int [TVAO_TYPES]; // should be in increasing order?
-	private int               num_pars_alpha;            //== num_pars_vegetation
-	private int               num_pars_elevation;        //== num_pars_vegetation
+	/*
-	private int               num_pars_scenes;
+	private int               num_pars[TVAO_TERRAIN]; 
+	private int               num_pars[TVAO_VEGETATION]; 
-	private int               ind_pars_terrain =   0;    // index of the first terrain parameter
+	private int               num_pars[TVAO_ALPHA];            //== num_pars[TVAO_VEGETATION]
-	private int               ind_pars_vegetation;       // index of the first vegetation parameter
+	private int               num_pars[TVAO_ELEVATION];        //== num_pars[TVAO_VEGETATION]
-	private int               ind_pars_alpha;            // index of the first alpha parameter
+	private int               num_pars[TVAO_SCENE_OFFSET];
-	private int               ind_pars_elevation;        // index of the first elevation parameter
-	private int               ind_pars_scenes;           // index of the first scene parameter
+	private int               ind_pars[TVAO_TERRAIN] =   0;    // index of the first terrain parameter
+	private int               ind_pars[TVAO_VEGETATION];       // index of the first vegetation parameter
+	private int               ind_pars[TVAO_ALPHA];            // index of the first alpha parameter
+	private int               ind_pars[TVAO_ELEVATION];        // index of the first elevation parameter
+	private int               ind_pars[TVAO_SCENE_OFFSET];     // index of the first scene parameter
+	*/
 	private int [][]          y_src;             // data pointers for y-vector
-	private int [][]          y_src_hf; // subset of pointers that have all 4 neighbors   
+	private int [][]          y_src_hf;          // subset of pointers that have all 4 neighbors   
 	private int [][]          y_src_scene;       // [scene]{start_y_src, end_y_src+1} pointers to y_src per scene
 	private int [][]          y_wsrc;            // [scene][windex] ysrc index for scene, windex [num_scenes][woi_length]
-//	private double []         y_wavg;            // [woi_length] - weighted average of y-values over woi
 	private double            terrain_correction;// weight of y_wavg
+	private double            terrain_correction_weight = 1.0;
+	private double            weight_to_scene_weight = 1;
+	private boolean           recalc_average = false; //apply transparency to average mismatch
 	private int [][]          samples_pointers;  // {start,length} for each samples section, for extra 3-rd is  ind_pars_*
@@ -131,6 +140,7 @@ public class VegetationLMA {
 //	@Deprecated
 //	private double             terr_pull_cold =     0;      // pull vegetations to warm, terrain to cold
+	private boolean []         fits_disable;                  // 
 	// Parameters saved/resored in a file
 	private final int          num_scenes;                // (+) 
@@ -165,9 +175,11 @@ public class VegetationLMA {
 	private double             scale_scenes_pull =  0;    // (*) used in getFxDerivs to scale scene offsets as their weight will be reg_weights / extra_samples	
 	public  double             boost_parallax =     1;    // (+)
 	// data used to calculate lpf pull of the alpha pixel to average of four neighbors. Below similar (weaker pull) for terrain and vegetation
 	// to smooth areas where there is no data from available images. 
-	public int [][]           alpha_neibs;   // corresponds to parameters for alpha (num_pars_vegetation_alpha), each has 4 ortho neibs, -1 - border, >= 0
+	public int [][]           alpha_neibs;   // corresponds to parameters for alpha (num_pars[TVAO_VEGETATION]_alpha), each has 4 ortho neibs, -1 - border, >= 0
 	public int [][]           terr_neibs;    // corresponds to parameters for terrain, for smoothing undefined terrain, similar to alpha_neibs
 	public int [][]           veget_neibs;   // corresponds to parameters for vegetation, for smoothing undefined vegetation, similar to alpha_neibs
 	public int [][]           elevation_neibs;   // corresponds to parameters for elevation, for smoothing undefined elevations, similar to alpha_neibs
@@ -399,7 +411,7 @@ public class VegetationLMA {
 			final boolean            fit_alpha,
 			final boolean            fit_scenes,
 			final boolean            fit_elevations,
+			final boolean []         fits_disable,  
 			final double             reg_weights,    // fraction of the total weight used for regularization
 			final double             alpha_loss,     // quadratic loss when alpha reaches -1.0 or 2.0 
 			final double             alpha_offset,   // quadratic loss when alpha reaches -1.0 or 2.0
@@ -433,7 +445,7 @@ public class VegetationLMA {
 		fits[TVAO_ALPHA] =       fit_alpha;
 		fits[TVAO_SCENE_OFFSET] =fit_scenes;
 		fits[TVAO_ELEVATION] =   fit_elevations;
+		this.fits_disable =      fits_disable.clone();
 		this.reg_weights =       reg_weights;    // fraction of the total weight used for regularization
 		this.alpha_loss =        alpha_loss;
 		this.alpha_offset =      alpha_offset;
@@ -594,49 +606,56 @@ public class VegetationLMA {
 		}
-		final double []     scene_weights = setupSceneWeights(
+//		final double []     scene_weights = //sets this.scene_weights too
+		double [] scene_weights0 = //sets this.scene_weights too
+				setupSceneWeights(
 				boost_parallax, // double boost_parallax)
 				woi,            // Rectangle woi)
 				max_parallax); // final double ceil_parallax)
+		System.arraycopy( // this.scene_weights is final, so copy
+				scene_weights0,
+				0,
+				this.scene_weights,
+				0,
+				num_scenes);
 		setupParametersIndices(
 				fits,                 // boolean [] fits,
 				debugLevel);          // final int debugLevel)
 		alpha_neibs = getNeighbors(
 				TVAO_ALPHA,      // final int tvao,        // TVAO_VEGETATION_ALPHA
-				ind_pars_alpha,  // final int ind_samples, // ind_pars_vegetation_alpha
+				ind_pars[TVAO_ALPHA],  // final int ind_samples, // ind_pars[TVAO_VEGETATION]_alpha
-				num_pars_alpha); // final int num_samples);  // num_pars_vegetation_alpha
+				num_pars[TVAO_ALPHA]); // final int num_samples);  // num_pars[TVAO_VEGETATION]_alpha
 		terr_neibs = getNeighbors(
 				TVAO_TERRAIN,               // final int tvao,        // TVAO_VEGETATION_ALPHA
-				ind_pars_terrain,           // final int ind_samples, // ind_pars_vegetation_alpha
+				ind_pars[TVAO_TERRAIN],           // final int ind_samples, // ind_pars[TVAO_VEGETATION]_alpha
-				num_pars_terrain);          // final int num_samples);  // num_pars_vegetation_alpha
+				num_pars[TVAO_TERRAIN]);          // final int num_samples);  // num_pars[TVAO_VEGETATION]_alpha
 		veget_neibs = getNeighbors(
 				TVAO_VEGETATION,            // final int tvao,        // TVAO_VEGETATION_ALPHA
-				ind_pars_vegetation,        // final int ind_samples, // ind_pars_vegetation_alpha
+				ind_pars[TVAO_VEGETATION],        // final int ind_samples, // ind_pars[TVAO_VEGETATION]_alpha
-				num_pars_vegetation);       // final int num_samples);  // num_pars_vegetation_alpha
+				num_pars[TVAO_VEGETATION]);       // final int num_samples);  // num_pars[TVAO_VEGETATION]_alpha
 		elevation_neibs = getNeighbors(
 				TVAO_ELEVATION,             // final int tvao,        // TVAO_VEGETATION_ALPHA
-				ind_pars_elevation,        // final int ind_samples, // ind_pars_vegetation_alpha
+				ind_pars[TVAO_ELEVATION],        // final int ind_samples, // ind_pars[TVAO_VEGETATION]_alpha
-				num_pars_elevation);       // final int num_samples);  // num_pars_vegetation_alpha
+				num_pars[TVAO_ELEVATION]);       // final int num_samples);  // num_pars[TVAO_VEGETATION]_alpha
 		neibs_neibs = new int [par_rindex.length][];
 		addSecondNeighbors(
 				neibs_neibs,          // final int [][] second_neibs,
 				terr_neibs,           // final int [][] par_neibs,
-				ind_pars_terrain);    // final int      start_index)
+				ind_pars[TVAO_TERRAIN]);    // final int      start_index)
 		addSecondNeighbors(
 				neibs_neibs,          // final int [][] second_neibs,
 				alpha_neibs,          // final int [][] par_neibs,
-				ind_pars_alpha);      // final int      start_index)
+				ind_pars[TVAO_ALPHA]);      // final int      start_index)
 		addSecondNeighbors(
 				neibs_neibs,          // final int [][] second_neibs,
 				veget_neibs,          // final int [][] par_neibs,
-				ind_pars_vegetation); // final int      start_index)
+				ind_pars[TVAO_VEGETATION]); // final int      start_index)
 		addSecondNeighbors(
 				neibs_neibs,          // final int [][] second_neibs,
 				elevation_neibs,      // final int [][] par_neibs,
-				ind_pars_elevation);  // final int      start_index)
+				ind_pars[TVAO_ELEVATION]);  // final int      start_index)
 		if (debugLevel > 4) {
 			showPivot(
@@ -671,8 +690,12 @@ public class VegetationLMA {
 		*/
 		setupWeights( // after setupParametersIndices
 				scene_weights,
-				reg_weights,      // final double reg_weights,
+				reg_weights,     // final double reg_weights,
-				hifreq_weight );  // final double hifreq_weight );
+				hifreq_weight);   // final double hifreq_weight );
+//				false,           // final boolean apply_transparency,
+//				1.0,             // final double  alpha_opaque,
+//				0.0);            // final double  alpha_pedestal) {
 		last_jt = new double [parameters_vector.length][];
 		return weights.length;
 	}
@@ -971,14 +994,24 @@ public class VegetationLMA {
 					"parameters.vector-"+debug_index);
 		}
+		boolean decimate = disabledParams(); // at least one parameter is
+		int [][] par_map = decimate ? getParsAllDecimatedAllIndices() : null;
+		double [][] last_jt_decimated = decimateJt( // will not decimate if par_map == null
+				par_map,       // final int    [][] par_map, // // only [1] used
+				this.last_jt); // final double [][] jt_full)
 		Matrix y_minus_fx_weighted = new Matrix(this.last_ymfx, this.last_ymfx.length);
 		boolean debug_jtj = debug_level>4;
 		Matrix wjtjlambda = new Matrix(getWJtJlambda(
-				lambda,       // *10, // temporary
+				lambda,            //
-				this.last_jt, // double [][] jt) // null
+				last_jt_decimated, // this.last_jt, // double [][] jt) // null
-				param_pivot,  // final boolean [][] pivot)));
+				param_pivot,       // final boolean [][] pivot)));
-				debug_jtj));  // final boolean debug));
+				par_map,           //final int [][]     par_map, // jt already remapped, apply par_map to pivot only
+				debug_jtj));       // final boolean debug));
+		if (debug_level > -2) { // 1) {
+			System.out.println((new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").format(Calendar.getInstance().getTime()))+
+					" getWJtJlambda() DONE, starting matrix inversion");
+		}
 		if (debug_level>4) {
 			System.out.println("JtJ + lambda*diag(JtJ");
 			wjtjlambda.print(18, 6);
@@ -999,7 +1032,8 @@ public class VegetationLMA {
 			jtjl_inv.print(18, 6);
 		}
 //last_jt has NaNs
-		Matrix jty = (new Matrix(this.last_jt)).times(y_minus_fx_weighted);
+//		Matrix jty = (new Matrix(this.last_jt)).times(y_minus_fx_weighted);
+		Matrix jty = (new Matrix(last_jt_decimated)).times(y_minus_fx_weighted);
 		if (debug_level>2) {
 			System.out.println("Jt * (y-fx)");
 			jty.print(18, 6);
@@ -1013,7 +1047,11 @@ public class VegetationLMA {
 		}
 		double scale = 1.0;
-		double []  delta =      mdelta.getColumnPackedCopy();
+		double []  delta_decim=      mdelta.getColumnPackedCopy();
+		double [] delta = expandDecimated(
+				par_map,      //final int    [][] par_map, // only [0] used
+				delta_decim); // final double [] data_decimated) 
 		double []  new_vector = parameters_vector.clone();
 		for (int i = 0; i < parameters_vector.length; i++) {
 			new_vector[i] += scale * delta[i];
@@ -1206,12 +1244,14 @@ public class VegetationLMA {
 	private double [][] getWJtJlambdaDebug(
 			final double      lambda,
 			final double [][] jt,
-			final boolean [][] pivot) {
+			final boolean [][] pivot,
+			final int [][]     par_map) {
 		long startTime = System.nanoTime();
 		double [][] jtj_full = getWJtJlambda(
 				lambda, // final double      lambda,
 				jt,     // final double [][] jt,
 				null,   // final boolean [][] pivot,
+				par_map, // final int [][]     par_map,
 				false);
 		long fullTime = System.nanoTime();
 		double full_run_time = (fullTime - startTime) * 1E-9;
@@ -1221,6 +1261,7 @@ public class VegetationLMA {
 				lambda, // final double      lambda,
 				jt,     // final double [][] jt,
 				pivot,  // final boolean [][] pivot,
+				par_map, // final int [][]     par_map,
 				false);
 		long endTime = System.nanoTime();
 		double pivot_run_time =  (endTime - fullTime) * 1E-9;
@@ -1249,16 +1290,19 @@ public class VegetationLMA {
 	private double [][] getWJtJlambda(
-			final double      lambda,
+			final double       lambda,
-			final double [][] jt,
+			final double [][]  jt,
 			final boolean [][] pivot,
+			final int [][]     par_map, // jt already remapped, apply par_map to pivot only
 			final boolean debug)
 	{
 		if (debug && (pivot != null)) {
 			return getWJtJlambdaDebug(
-					lambda, // final double      lambda,
+					lambda,   // final double      lambda,
-					jt, // final double [][] jt,
+					jt,       // final double [][] jt,
-					pivot); // final boolean [][] pivot,
+					pivot,    // final boolean [][] pivot,
+					par_map); // final int [][]     par_map,
 		}
 		final int num_pars = jt.length;
 		final int num_pars2 = num_pars * num_pars;
@@ -1272,8 +1316,10 @@ public class VegetationLMA {
 					for (int indx = ai.getAndIncrement(); indx < num_pars2; indx = ai.getAndIncrement()) {
 						int i = indx / num_pars;
 						int j = indx % num_pars;
+						int pi = (par_map==null)? i : par_map[1][i];
+						int pj = (par_map==null)? j : par_map[1][j];
 						// diagonals are set true in pivot[i][i] = true;
-						if ((j >= i) && ((pivot == null) || pivot[i][j])) {
+						if ((j >= i) && ((pivot == null) || pivot[pi][pj])) { // pivot[i][j])) {
 							double d = 0.0;
 							for (int k = 0; k < nup_points; k++) {
 								if (jt[i][k] != 0) {
@@ -1536,7 +1582,7 @@ public class VegetationLMA {
 			final double []   vector,
 			final boolean     calc_derivatives,
 			final int debugLevel) {
-		final boolean elevation_parameters = (num_pars_elevation > 0);
+		final boolean elevation_parameters = (num_pars[TVAO_ELEVATION] > 0);
 		final boolean need_derivs = elevation_parameters && calc_derivatives;
 		if (!need_derivs && (elev_sum_weights != null)) {
 			return; // nothing to do
@@ -1550,13 +1596,13 @@ public class VegetationLMA {
 		if (need_derivs) {
 			elev_dweights4 =    new double [num_scenes][][];
 			elev_dsum_weights = new double [num_scenes][][];
-//			elev_dsum_pivot = new boolean [num_pars_elevation][num_pars_elevation];
+//			elev_dsum_pivot = new boolean [num_pars[TVAO_ELEVATION]][num_pars[TVAO_ELEVATION]];
 		}
 	//elev_radius[num_pixels];	
 		final Thread[] threads = ImageDtt.newThreadArray();
 		final AtomicInteger ai = new AtomicInteger(0);
 		final AtomicInteger ati = new AtomicInteger(0);
-//		final boolean [][][] pivot_thread = new boolean[threads.length][woi_veg_length][num_pars_elevation];
+//		final boolean [][][] pivot_thread = new boolean[threads.length][woi_veg_length][num_pars[TVAO_ELEVATION]];
 		final ArrayList<ArrayList<HashSet<Integer>>> contrib_threads = new ArrayList<ArrayList<HashSet<Integer>>>(threads.length);
 		if (need_derivs) {
 			for (int nthread = 0; nthread < threads.length; nthread++) {
@@ -1587,7 +1633,7 @@ public class VegetationLMA {
 						elev_sum_weights[nScene] = new double [woi_length];
 						if (need_derivs) {
 							elev_dweights4[nScene] = new double [woi_veg_length][];
-							elev_dsum_weights[nScene] = new double [num_pars_elevation][woi_length];
+							elev_dsum_weights[nScene] = new double [num_pars[TVAO_ELEVATION]][woi_length];
 						}
 						for (int wvindex = 0; wvindex < woi_veg_length; wvindex++) if (valid_vegetation[wvindex]) {
 							int wvx = wvindex % woi_veg.width;   // relative to woi_veg
@@ -1679,7 +1725,7 @@ public class VegetationLMA {
 											double dww =  wnd_y * dwnd_x[dx] +  dwnd_y*wnd_x[dx];
 											elev_dweights4[nScene][wvindex][dindx] =  dww;
 											int par_indx_elev = par_index[TVAO_ELEVATION][npix]; // ipx+ipy*full.width];
-											elev_dsum_weights[nScene][par_indx_elev-ind_pars_elevation][wpindex] += dww;
+											elev_dsum_weights[nScene][par_indx_elev-ind_pars[TVAO_ELEVATION]][wpindex] += dww;
 											contrib_thread.get(wpindex).add(par_indx_elev); // full parameter index 
 //											pivot_thread[nthread][wvindex][par_indx_elev] = true;
 										}
@@ -1695,7 +1741,7 @@ public class VegetationLMA {
 		if (need_derivs) {
 			// combine pivots
-//			final boolean [][] pivot_combo = new boolean[woi_veg_length][num_pars_elevation];
+//			final boolean [][] pivot_combo = new boolean[woi_veg_length][num_pars[TVAO_ELEVATION]];
 			final ArrayList<HashSet<Integer>> contrib_combo = new ArrayList<HashSet<Integer>>(woi_length);
 			for (int i = 0; i < woi_length; i++) {
 				contrib_combo.add(new HashSet<Integer>());
@@ -1718,8 +1764,8 @@ public class VegetationLMA {
 			elev_contribs = contrib_combo; // for each of the woi pixels - set of full elevation parameter indices that influence it 
 			/*
 			elev_dsum_pivot = getPivotFromSets(
-					ind_pars_elevation, // final int par_index,
+					ind_pars[TVAO_ELEVATION], // final int par_index,
-					num_pars_elevation, // final int par_number,
+					num_pars[TVAO_ELEVATION], // final int par_number,
 					contrib_combo); // final ArrayList<HashSet<Integer>> sets)
 			*/
@@ -2042,7 +2088,7 @@ public class VegetationLMA {
 	private double [] getFxDerivs(
 			final double []   vector,
 			final double [][] jt, // should be null or initialized with [vector.length][]
-			final double [][] debug_data, // {elev* alpha shifted, terrain *(1-alpha) shifted, elev_sum_weights}  
+			final double [][] extra_data, // {elev* alpha shifted, terrain *(1-alpha) shifted, elev_sum_weights}  
 			final int         debug_level)	{
 		final boolean dbg1 = (debug_level > 4);
 //		final int     dbg_y_indx = 900; // and multiples ?
@@ -2057,11 +2103,11 @@ public class VegetationLMA {
 		final int num_pixels =     full.width * full.height;
 		final boolean need_derivs =           (jt != null);
-		final boolean elevation_parameters =  (num_pars_elevation  > 0);
+		final boolean elevation_parameters =  (num_pars[TVAO_ELEVATION]  > 0);
-		final boolean vegetation_parameters = (num_pars_vegetation > 0);
+		final boolean vegetation_parameters = (num_pars[TVAO_VEGETATION] > 0);
-		final boolean alpha_parameters =      (num_pars_alpha      > 0);
+		final boolean alpha_parameters =      (num_pars[TVAO_ALPHA]      > 0);
-		final boolean terrain_parameters =    (num_pars_terrain    > 0);
+		final boolean terrain_parameters =    (num_pars[TVAO_TERRAIN]    > 0);
-		final boolean scenes_parameters =     (num_pars_scenes     > 0);
+		final boolean scenes_parameters =     (num_pars[TVAO_SCENE_OFFSET]     > 0);
 		final AtomicInteger anum_elev_err = new AtomicInteger(0);
 //		final boolean use_hf =    samples_pointers[SAMPLES_Y_HF][1]>0;
 		// using 0.5*(1-cos(alpha/2pi) instead of alpha. alpha < 0 -> 0, alpha > 1 -> 1. Depends on other terms for stability 
@@ -2071,9 +2117,17 @@ public class VegetationLMA {
 				jt[i] = new double [weights.length]; // weights.length];
 			}
 		}
-		if (debug_data != null) {
+		if (extra_data != null) {
-			for (int i = 0; i < debug_data.length; i++) {
+			for (int i = 0; i < extra_data.length; i++) {
-				debug_data[i] = new double [weights.length];
+				extra_data[i] = new double [weights.length];
+			}
+			if (extra_data.length > 5) {
+				System.arraycopy(
+						weights,
+						0,
+						extra_data[5],
+						0,
+						weights.length);
 			}
 		}
 		final Thread[] threads = ImageDtt.newThreadArray();
@@ -2109,8 +2163,8 @@ public class VegetationLMA {
 						for (int i = 0; i < woi_length; i++) {
 							contrib_thread.add(new HashSet<Integer>());
 						}
-						dalpha_woi =   new double [num_pars_alpha][woi_length]; // first index is 0 if not adjusted 
+						dalpha_woi =   new double [num_pars[TVAO_ALPHA]][woi_length]; // first index is 0 if not adjusted 
-						dveget_woi =   new double [num_pars_vegetation][woi_length]; // first index is 0 if not adjusted 
+						dveget_woi =   new double [num_pars[TVAO_VEGETATION]][woi_length]; // first index is 0 if not adjusted 
 					}
 					for (int nScene = ai.getAndIncrement(); nScene < num_scenes; nScene = ai.getAndIncrement()) if (valid_scenes[nScene]){
 						Arrays.fill(alpha_woi,0);
@@ -2180,11 +2234,11 @@ public class VegetationLMA {
 										if (need_derivs) {
 											if (nvpar >= 0) {
 												contrib_thread.get(windx).add(nvpar); // full parameter index
-												dveget_woi[nvpar-ind_pars_vegetation][windx] += w;
+												dveget_woi[nvpar-ind_pars[TVAO_VEGETATION]][windx] += w;
 											}
 											if (napar >= 0) {
 												contrib_thread.get(windx).add(napar); // full parameter index
-												dalpha_woi[napar-ind_pars_alpha][windx] += w;
+												dalpha_woi[napar-ind_pars[TVAO_ALPHA]][windx] += w;
 											}
 										}
 									}
@@ -2224,7 +2278,7 @@ public class VegetationLMA {
 								double sw = elev_sum_weights[nScene][windx];
 								if (sw == 0) {
 									anum_elev_err.getAndIncrement();
-									if ((debug_level > -2) && (debug_data == null)){
+									if ((debug_level > -2) && (extra_data == null)){
 										System.out.println("getFxDerivs(): BUG:  elev_sum_weights["+nScene+"]["+windx+"]=0");
 									}
 								} else { // OK, non-zero
@@ -2237,13 +2291,19 @@ public class VegetationLMA {
 							            k = (avg_alpha < 0)? 0: ((avg_alpha > 1) ? 1.0: 0.5 * (1.0 - Math.cos(avg_alpha*Math.PI)));	
 							        }
 							        d = terrain * (1.0 - k) + avg_veget * k;
-									if (debug_data != null) {
+							        if (extra_data != null) {
-										debug_data[0][y_indx] = k;
+							        	if (extra_data.length > 0) {
-										debug_data[1][y_indx] = terrain;
+							        		extra_data[0][y_indx] = k;
-										debug_data[2][y_indx] = terrain * (1.0 - k) + scene_offset;
+							        		if (extra_data.length > 1) {
-										debug_data[3][y_indx] = avg_veget * k + scene_offset;
+							        			extra_data[1][y_indx] = terrain;
-										debug_data[4][y_indx] = sw;
+							        			if (extra_data.length > 2) {
-									}
+							        				extra_data[2][y_indx] = terrain * (1.0 - k) + scene_offset;
+							        				if (extra_data.length > 3) {
+							        					extra_data[3][y_indx] = avg_veget * k + scene_offset;
+							        					if (extra_data.length > 4) {
+							        						extra_data[4][y_indx] = sw;
+							        					}}}}}
+							        }
 							        if (need_derivs) {
 							        	if (ntpar >= 0) {
@@ -2252,16 +2312,16 @@ public class VegetationLMA {
 							        	if (vegetation_parameters || alpha_parameters) {
 							        		HashSet<Integer> pars_set =  contrib_thread.get(windx); // may have unrelated (from other scenes) but still a small number
 							        		for (int npar:  pars_set) {
-							        			int nvpar = npar - ind_pars_vegetation; // 0-based index of the vegetation
+							        			int nvpar = npar - ind_pars[TVAO_VEGETATION]; // 0-based index of the vegetation
-							        			if((nvpar >= 0) && (nvpar < num_pars_vegetation)) {
+							        			if((nvpar >= 0) && (nvpar < num_pars[TVAO_VEGETATION])) {
 							        				jt[npar][y_indx] = k * dveget_woi[nvpar][windx]/sw ;
 								        			contrib_thread.get(windx).add(npar); // full parameter index, vegetation
 								        			if (dbg1 && (npar== dbg_npar)) {
 								        				System.out.println("nscene="+nScene+" ntherad="+nthread+"y_indx="+y_indx+" windx="+windx+" sw="+sw+" d="+d+" k="+k+" jt="+jt[npar][y_indx]+" dveget_woi="+dveget_woi[nvpar][windx]);
 								        			}
 							        			}  else {
-								        			int napar = npar - ind_pars_alpha;
+								        			int napar = npar - ind_pars[TVAO_ALPHA];
-								        			if ((napar >= 0) && (napar < num_pars_alpha)) {
+								        			if ((napar >= 0) && (napar < num_pars[TVAO_ALPHA])) {
 								        				if ((avg_alpha >= 0) && (avg_alpha <= 1.0)) {
 								                            if (alpha_piece_linear) {
 								                            	jt[npar][y_indx] = dalpha_woi[napar][windx]/sw * (avg_veget - terrain);
@@ -2279,8 +2339,8 @@ public class VegetationLMA {
 							        		// we have dsw_delevations (for all elevation parameters) - ,
 							        		HashSet<Integer> epars_set =  elev_contribs.get(windx); // may have unrelated (from other scenes) but still a small number
 							        		for (int npar:  epars_set) { // elevation parameters - full
-							        			int nepar = npar-ind_pars_elevation;
+							        			int nepar = npar-ind_pars[TVAO_ELEVATION];
-							        			if ((nepar >=0 ) && (nepar < num_pars_elevation)) {
+							        			if ((nepar >=0 ) && (nepar < num_pars[TVAO_ELEVATION])) {
 							        				int findx = par_rindex[npar][1]; // full image pixel;
 							        				double veget_src = tvao[TVAO_VEGETATION][findx];
 							        				if (vegetation_parameters) {
@@ -2319,7 +2379,7 @@ public class VegetationLMA {
 							        				// add to the set of parameters
 								        			contrib_thread.get(windx).add(npar); // full parameter index, elevation
 							        			} else { // bug
-													System.out.println("getFxDerivs(): BUG: npar="+npar+" -> nepar="+nepar+" >= num_pars_elevation="+num_pars_elevation);
+													System.out.println("getFxDerivs(): BUG: npar="+npar+" -> nepar="+nepar+" >= num_pars[TVAO_ELEVATION]="+num_pars[TVAO_ELEVATION]);
 							        			}
 							        		}
 							        	}
@@ -2330,8 +2390,8 @@ public class VegetationLMA {
 								if (need_derivs && (ntpar >= 0)) {
 									jt[ntpar][y_indx] = 1.0;
 								}
-								if (debug_data != null) {
+								if (extra_data != null) {
-									debug_data[0][y_indx] = terrain + scene_offset;
+									extra_data[0][y_indx] = terrain + scene_offset;
 								}
 							}
 							fX[y_indx] = d + scene_offset;
@@ -2485,8 +2545,8 @@ public class VegetationLMA {
 		if (samples_pointers[SAMPLES_SCENES][1]>0) { // use_scenes_pull0) { // single sample after differences
 			int ind_scenes = samples_pointers[SAMPLES_SCENES][0];
 			fX[ind_scenes] = 0.0; // ind_next] =0.0;
-			for (int n = 0; n < num_pars_scenes; n++) { // only count adjustable scene offsets
+			for (int n = 0; n < num_pars[TVAO_SCENE_OFFSET]; n++) { // only count adjustable scene offsets
-				int np = ind_pars_scenes + n; // index of the alpha parameter
+				int np = ind_pars[TVAO_SCENE_OFFSET] + n; // index of the alpha parameter
 				int nscene = par_rindex[np][1];
 				double sw=scene_weights[nscene] * scale_scenes_pull;
 				fX[ind_scenes] += sw * vector[np];
@@ -2514,7 +2574,8 @@ public class VegetationLMA {
 							if (debug_print &&  (windx == 0)) {
 								System.out.println("yIndx="+yIndx+", nscene="+nscene+", indx="+indx+", windx="+windx);
 							}
-							double w =   scene_weights[nscene]; // norm_scene_weights[nscene];
+							double w = recalc_average ?  weights[yIndx]/weight_to_scene_weight: scene_weights[nscene]; // norm_scene_weights[nscene];
+							w *= terrain_correction; 
 							fX_avg_thread[nthread][windx] += w * fX[yIndx]; // already calculated
 							if (jt_avg_thread != null) {
 								HashSet<Integer> pars_contribs =  param_contribs.get(windx); // contributors before laplacians
@@ -2557,7 +2618,7 @@ public class VegetationLMA {
 			for (int ithread = 0; ithread < threads.length; ithread++) {
 				threads[ithread] = new Thread() {
 					public void run() {
-						for (int n = ai.getAndIncrement(); n < num_pars_alpha; n = ai.getAndIncrement()) {
+						for (int n = ai.getAndIncrement(); n < num_pars[TVAO_ALPHA]; n = ai.getAndIncrement()) {
 							int np = n + samples_pointers[SAMPLES_ALPHA_PULL][2]; // index of the alpha parameter
 							int nx = n + samples_pointers[SAMPLES_ALPHA_PULL][0]; //  y_vector.length; // x - index
 							if (nx == dbg_nx) {
@@ -2617,12 +2678,12 @@ public class VegetationLMA {
 		if (samples_pointers[SAMPLES_ALPHA_LPF][1] > 0) { // fits[TVAO_ALPHA] && (alpha_lpf >= 0)) {
 			int dbg_nx = -76340;
 //			final int ind_y_alpha_lpf = samples_pointers[SAMPLES_ALPHA_LPF][0]; // ind_next;
-//			ind_next += num_pars_alpha;
+//			ind_next += num_pars[TVAO_ALPHA];
 			ai.set(0);
 			for (int ithread = 0; ithread < threads.length; ithread++) {
 				threads[ithread] = new Thread() {
 					public void run() {
-						for (int n = ai.getAndIncrement(); n < num_pars_alpha; n = ai.getAndIncrement()) {
+						for (int n = ai.getAndIncrement(); n < num_pars[TVAO_ALPHA]; n = ai.getAndIncrement()) {
 							int np = n + samples_pointers[SAMPLES_ALPHA_LPF][2]; // index of the alpha parameter
 							int nx = n + samples_pointers[SAMPLES_ALPHA_LPF][0]; //  y_vector.length; // x - index
 							if (nx == dbg_nx) {
@@ -2710,7 +2771,7 @@ public class VegetationLMA {
 			for (int ithread = 0; ithread < threads.length; ithread++) {
 				threads[ithread] = new Thread() {
 					public void run() {
-						for (int n = ai.getAndIncrement(); n < num_pars_terrain; n = ai.getAndIncrement()) {
+						for (int n = ai.getAndIncrement(); n < num_pars[TVAO_TERRAIN]; n = ai.getAndIncrement()) {
 							int np = n + samples_pointers[SAMPLES_TERRAIN_PULL][2]; 
 							int nx = n + samples_pointers[SAMPLES_TERRAIN_PULL][0];
 							double d = 0;
@@ -2734,12 +2795,12 @@ public class VegetationLMA {
 		if (samples_pointers[SAMPLES_TERRAIN_LPF][1]>0) { // fits[TVAO_TERRAIN] && (terr_lpf >= 0)) {
 //			final int ind_y_terr = samples_pointers[SAMPLES_TERRAIN_LPF][0]; // ind_next;
-//			ind_next += num_pars_terrain;
+//			ind_next += num_pars[TVAO_TERRAIN];
 			ai.set(0);
 			for (int ithread = 0; ithread < threads.length; ithread++) {
 				threads[ithread] = new Thread() {
 					public void run() {
-						for (int n = ai.getAndIncrement(); n < num_pars_terrain; n = ai.getAndIncrement()) {
+						for (int n = ai.getAndIncrement(); n < num_pars[TVAO_TERRAIN]; n = ai.getAndIncrement()) {
 							int np = n + samples_pointers[SAMPLES_TERRAIN_LPF][2];
 							int nx = n + samples_pointers[SAMPLES_TERRAIN_LPF][0];
 							double d = 0;
@@ -2780,12 +2841,12 @@ public class VegetationLMA {
 		if (samples_pointers[SAMPLES_VEGETATION_PULL][1] > 0) { // fits[TVAO_VEGETATION] && (veget_lpf >= 0)) { // should be positive for pull0 and terr_pull_cold (difference between vegetation and terrain)
 //			final int ind_y_veget = samples_pointers[SAMPLES_VEGETATION_PULL][0]; // ind_next;
-			//			ind_next += num_pars_vegetation;
+			//			ind_next += num_pars[TVAO_VEGETATION];
 			ai.set(0);
 			for (int ithread = 0; ithread < threads.length; ithread++) {
 				threads[ithread] = new Thread() {
 					public void run() {
-						for (int n = ai.getAndIncrement(); n < num_pars_vegetation; n = ai.getAndIncrement()) {
+						for (int n = ai.getAndIncrement(); n < num_pars[TVAO_VEGETATION]; n = ai.getAndIncrement()) {
 							int np = n + samples_pointers[SAMPLES_VEGETATION_PULL][2];
 							int nx = n + samples_pointers[SAMPLES_VEGETATION_PULL][0];
 							double d = 0;
@@ -2814,7 +2875,7 @@ public class VegetationLMA {
 			for (int ithread = 0; ithread < threads.length; ithread++) {
 				threads[ithread] = new Thread() {
 					public void run() {
-						for (int n = ai.getAndIncrement(); n < num_pars_vegetation; n = ai.getAndIncrement()) {
+						for (int n = ai.getAndIncrement(); n < num_pars[TVAO_VEGETATION]; n = ai.getAndIncrement()) {
 							int np = n + samples_pointers[SAMPLES_VEGETATION_LPF][2];
 							int nx = n + samples_pointers[SAMPLES_VEGETATION_LPF][0];
 							double d = 0;
@@ -2857,19 +2918,19 @@ public class VegetationLMA {
 		if (samples_pointers[SAMPLES_VEGETATION_LPF][1] > 0) { // should be positive for pull0 and terr_pull_cold (difference between vegetation and terrain)
-			if  (num_pars_alpha <= 0) {
+			if  (num_pars[TVAO_ALPHA] <= 0) {
 				System.out.println("getFxDerivs(): BUG: Asjusting SAMPLES_VEGETATION_LPF requires alpha parameters aslo to be fitted");
 			} else {
 				ai.set(0);
 				for (int ithread = 0; ithread < threads.length; ithread++) {
 					threads[ithread] = new Thread() {
 						public void run() {
-							for (int n = ai.getAndIncrement(); n < num_pars_vegetation; n = ai.getAndIncrement()) {
+							for (int n = ai.getAndIncrement(); n < num_pars[TVAO_VEGETATION]; n = ai.getAndIncrement()) {
 								int np = n + samples_pointers[SAMPLES_VEGETATION_LPF][2];
 								int nx = n + samples_pointers[SAMPLES_VEGETATION_LPF][0];
 								int findx = par_rindex[np][1];//
 								int npa = par_index[TVAO_ALPHA][findx]; // parameter for same-pixel alpha
-								int na = npa - ind_pars_alpha;
+								int na = npa - ind_pars[TVAO_ALPHA];
 								if (npa < 0) {
 									System.out.println("getFxDerivs(): BUG: no alpha for vegetation, n="+n+", np="+np+", nx ="+nx+
 											" findx="+findx+", npa="+npa);
@@ -2987,7 +3048,7 @@ public class VegetationLMA {
 			for (int ithread = 0; ithread < threads.length; ithread++) {
 				threads[ithread] = new Thread() {
 					public void run() {
-						for (int n = ai.getAndIncrement(); n < num_pars_elevation; n = ai.getAndIncrement()) {
+						for (int n = ai.getAndIncrement(); n < num_pars[TVAO_ELEVATION]; n = ai.getAndIncrement()) {
 							int np = n + samples_pointers[SAMPLES_ELEVATION_PULL][2];
 							int nx = n + samples_pointers[SAMPLES_ELEVATION_PULL][0];
 							double d = 0;
@@ -3015,7 +3076,7 @@ public class VegetationLMA {
 			for (int ithread = 0; ithread < threads.length; ithread++) {
 				threads[ithread] = new Thread() {
 					public void run() {
-						for (int n = ai.getAndIncrement(); n < num_pars_elevation; n = ai.getAndIncrement()) {
+						for (int n = ai.getAndIncrement(); n < num_pars[TVAO_ELEVATION]; n = ai.getAndIncrement()) {
 							int np = n + samples_pointers[SAMPLES_ELEVATION_LPF][2];
 							int nx = n + samples_pointers[SAMPLES_ELEVATION_LPF][0];
 							double d = 0;
@@ -3346,23 +3407,31 @@ public class VegetationLMA {
 			vector = parameters_vector;
 		}
 		final boolean use_hf = y_vector.length > y_src.length; // twice longer
+		final int index_combo =    num_scenes;
+		final int index_weighted = num_scenes+1;
+		final int ext_scenes =     index_weighted+1; // number of scenes and averages 
 		String [] top_titles = use_hf? (
-				new     String[]{"Y_lf", "fX_lf", "Ylf-fXlf","Y_hf", "fX_hf", "Yhf-fXhf", "alpha", "terrain", "terr-scaled","veget","sum_w"}):
+				new     String[]{"Y_lf", "fX_lf", "Ylf-fXlf","Y_hf", "fX_hf", "Yhf-fXhf", "alpha", "terrain", "terr-scaled","veget","sum_w","weights"}):
-					new String[]{"Y", "fX", "Y-fX","alpha", "terrain", "terr-scaled","veget","sum_w"};
+					new String[]{"Y", "fX", "Y-fX","alpha", "terrain", "terr-scaled","veget","sum_w","weights"};
-		double [][][] img_data = new double [top_titles.length][num_scenes+1][woi.width*woi.height];
+		double [][][] img_data = new double [top_titles.length][ext_scenes][woi.width*woi.height];
+		double [][] extra_data = new double [6][];
+		int    index_alpha = use_hf ? 6:3;
+		int    index_extra_weight = 5; 
+		int    index_weight =       index_alpha + index_extra_weight; 
+		double scale_weights = 1e6; // to make easy-to-set image windows
 		for (int n = 0; n < img_data.length; n++) {
-			for (int nscene = 0; nscene < num_scenes; nscene++) {
+			int num_nan_scenes = ( n== index_alpha) ? ext_scenes : num_scenes;
+//			for (int nscene = 0; nscene < img_data[n].length; nscene++) {
+			for (int nscene = 0; nscene < num_nan_scenes; nscene++) {
 				Arrays.fill(img_data[n][nscene], Double.NaN);
 			}
 		}
-		double [][] debug_data = new double [5][];
-		int index_alpha = use_hf ? 6:3;
 		double [] fX = getFxDerivs( // longer than y_vector
 				vector,     // final double []   vector,
 				null,       // final double [][] jt, // should be null or initialized with [vector.length][]
-				debug_data, // final double [][] debug_data, // {elev* alpha shifted, terrain *(1-alpha) shifted, elev_sum_weights} 
+				extra_data, // final double [][] debug_data, // {elev* alpha shifted, terrain *(1-alpha) shifted, elev_sum_weights} 
 				-1);        // final int         debug_level)
 		final Thread[] threads = ImageDtt.newThreadArray(QuadCLT.THREADS_MAX);
@@ -3379,8 +3448,9 @@ public class VegetationLMA {
 						img_data[0][nscene][windx] = y_vector[n_lf];
 						img_data[1][nscene][windx] = fX[n_lf];
 						img_data[2][nscene][windx] = y_vector[n_lf]-fX[n_lf];
-						for (int i = 0; i < debug_data.length; i++) {
+						for (int i = 0; i < extra_data.length; i++) {
-							img_data[index_alpha + i][nscene][windx] = debug_data[i][n_lf];
+							double k = (i == index_extra_weight) ? scale_weights : 1.0;
+							img_data[index_alpha + i][nscene][windx] = k* extra_data[i][n_lf];
 						}
 					}
 				}
@@ -3411,30 +3481,63 @@ public class VegetationLMA {
 		}
 		double [][] sw = new double [img_data.length][img_data[0][0].length];
+		for (int slice=0; slice < img_data.length; slice++) {
+			if (slice == index_alpha) { // min alpha instead of the average
+				for (int nscene = 0; nscene < num_scenes; nscene++) {
+					for (int npix = 0; npix < img_data[slice][nscene].length; npix++) if (!Double.isNaN(img_data[slice][nscene][npix])){
+						double d = img_data[slice][nscene][npix];
+						if (!(img_data[slice][index_combo][npix] <= d)) {
+							img_data[slice][index_combo][npix] = d;
+						}
+					}
+				}
+			} else {
+				for (int nscene = 0; nscene < num_scenes; nscene++) {
+					double w = (slice == index_weight)? 1.0: scene_weights[nscene];
+					for (int npix = 0; npix < img_data[slice][nscene].length; npix++) if (!Double.isNaN(img_data[slice][nscene][npix])){
+						sw[slice][npix] += w;
+						img_data[slice][index_combo][npix] += w * img_data[slice][nscene][npix]; 
+					}
+				}
+				for (int npix = 0; npix < sw[slice].length; npix++) {
+					double w = sw[slice][npix];
+					if (w > 0) {
+						img_data[slice][index_combo][npix] /= w;
+					} else {
+						img_data[slice][index_combo][npix] = Double.NaN;
+					}
+				}
+			}
+		}
+		sw = new double [img_data.length][img_data[0][0].length]; // reset to all 0-s
 		for (int slice=0; slice < img_data.length; slice++) {
 			for (int nscene = 0; nscene < num_scenes; nscene++) {
+//				double w = (slice == index_weight)? 1.0: scene_weights[nscene];
 				for (int npix = 0; npix < img_data[slice][nscene].length; npix++) if (!Double.isNaN(img_data[slice][nscene][npix])){
-					double w = scene_weights[nscene];
+					double w = (slice == index_weight)? 1.0: extra_data[index_extra_weight][npix];
-					sw[slice][npix] += w;
+					if (!Double.isNaN(w)) {
-					img_data[slice][num_scenes][npix] += w * img_data[slice][nscene][npix]; 
+						sw[slice][npix] += w;
+						img_data[slice][index_weighted][npix] += w * img_data[slice][nscene][npix];
+					}
 				}
 			}
 			for (int npix = 0; npix < sw[slice].length; npix++) {
 				double w = sw[slice][npix];
 				if (w > 0) {
-					img_data[slice][num_scenes][npix] /= w;
+					img_data[slice][index_weighted][npix] /= w;
 				} else {
-					img_data[slice][num_scenes][npix] = Double.NaN;
+					img_data[slice][index_weighted][npix] = Double.NaN;
 				}
-			}			
+			}
 		}
-		String [] scene_titles = new String[num_scenes+1];
+		String [] scene_titles = new String[ext_scenes];
 		for (int i = 0; i < num_scenes; i++) {
 			scene_titles[i] = ""+i;
 		}
-		scene_titles[num_scenes] = "average";
+		scene_titles[index_combo] = "combo";
+		scene_titles[index_weighted] = "weighted";
 		ShowDoubleFloatArrays.showArraysHyperstack(
 				img_data,           // double[][][] pixels, 
 				woi.width,                // int          width, 
@@ -3641,16 +3744,16 @@ public class VegetationLMA {
 		imp.setProperty("SCALE_SCENES_PULL",         ""+scale_scenes_pull);
 		imp.setProperty("BOOST_PARALLAX",            ""+boost_parallax);
-		imp.setProperty("NUM_PARS_TERRAIN",          ""+num_pars_terrain);
+		imp.setProperty("NUM_PARS_TERRAIN",          ""+num_pars[TVAO_TERRAIN]);
-		imp.setProperty("NUM_PARS_VEGETATION",       ""+num_pars_vegetation);
+		imp.setProperty("NUM_PARS_VEGETATION",       ""+num_pars[TVAO_VEGETATION]);
-		imp.setProperty("NUM_PARS_ALPHA",            ""+num_pars_alpha);
+		imp.setProperty("NUM_PARS_ALPHA",            ""+num_pars[TVAO_ALPHA]);
-		imp.setProperty("NUM_PARS_ELEVATION",        ""+num_pars_elevation);
+		imp.setProperty("NUM_PARS_ELEVATION",        ""+num_pars[TVAO_ELEVATION]);
-		imp.setProperty("NUM_PARS_SCENES",           ""+num_pars_scenes);
+		imp.setProperty("NUM_PARS_SCENES",           ""+num_pars[TVAO_SCENE_OFFSET]);
-		imp.setProperty("IND_PARS_TERRAIN",          ""+ind_pars_terrain);
+		imp.setProperty("IND_PARS_TERRAIN",          ""+ind_pars[TVAO_TERRAIN]);
-		imp.setProperty("IND_PARS_VEGETATION",       ""+ind_pars_vegetation);
+		imp.setProperty("IND_PARS_VEGETATION",       ""+ind_pars[TVAO_VEGETATION]);
-		imp.setProperty("IND_PARS_ALPHA",            ""+ind_pars_alpha);
+		imp.setProperty("IND_PARS_ALPHA",            ""+ind_pars[TVAO_ALPHA]);
-		imp.setProperty("IND_PARS_ELEVATION",        ""+ind_pars_elevation);
+		imp.setProperty("IND_PARS_ELEVATION",        ""+ind_pars[TVAO_ELEVATION]);
-		imp.setProperty("IND_PARS_SCENES",           ""+ind_pars_scenes);
+		imp.setProperty("IND_PARS_SCENES",           ""+ind_pars[TVAO_SCENE_OFFSET]);
 // 	samples_pointers
 		for (int nsp = 0; nsp < SAMPLES_SIZE; nsp++) {
@@ -3803,16 +3906,16 @@ public class VegetationLMA {
 				scale_scenes_pull =         Double.parseDouble((String)   imp_pars.getProperty("SCALE_SCENES_PULL"));
 				boost_parallax =            Double.parseDouble((String)   imp_pars.getProperty("BOOST_PARALLAX"));
 			}
-			num_pars_terrain =          Integer.parseInt((String) imp_pars.getProperty("NUM_PARS_TERRAIN"));
+			num_pars[TVAO_TERRAIN] =          Integer.parseInt((String) imp_pars.getProperty("NUM_PARS_TERRAIN"));
-			num_pars_vegetation =       Integer.parseInt((String) imp_pars.getProperty("NUM_PARS_VEGETATION"));
+			num_pars[TVAO_VEGETATION] =       Integer.parseInt((String) imp_pars.getProperty("NUM_PARS_VEGETATION"));
-			num_pars_alpha =            Integer.parseInt((String) imp_pars.getProperty("NUM_PARS_ALPHA"));
+			num_pars[TVAO_ALPHA] =            Integer.parseInt((String) imp_pars.getProperty("NUM_PARS_ALPHA"));
-			num_pars_elevation =        Integer.parseInt((String) imp_pars.getProperty("NUM_PARS_ELEVATION"));
+			num_pars[TVAO_ELEVATION] =        Integer.parseInt((String) imp_pars.getProperty("NUM_PARS_ELEVATION"));
-			num_pars_scenes =           Integer.parseInt((String) imp_pars.getProperty("NUM_PARS_SCENES"));
+			num_pars[TVAO_SCENE_OFFSET] =           Integer.parseInt((String) imp_pars.getProperty("NUM_PARS_SCENES"));
-			ind_pars_terrain =          Integer.parseInt((String) imp_pars.getProperty("IND_PARS_TERRAIN"));
+			ind_pars[TVAO_TERRAIN] =          Integer.parseInt((String) imp_pars.getProperty("IND_PARS_TERRAIN"));
-			ind_pars_vegetation =       Integer.parseInt((String) imp_pars.getProperty("IND_PARS_VEGETATION"));
+			ind_pars[TVAO_VEGETATION] =       Integer.parseInt((String) imp_pars.getProperty("IND_PARS_VEGETATION"));
-			ind_pars_alpha =            Integer.parseInt((String) imp_pars.getProperty("IND_PARS_ALPHA"));
+			ind_pars[TVAO_ALPHA] =            Integer.parseInt((String) imp_pars.getProperty("IND_PARS_ALPHA"));
-			ind_pars_elevation =        Integer.parseInt((String) imp_pars.getProperty("IND_PARS_ELEVATION"));
+			ind_pars[TVAO_ELEVATION] =        Integer.parseInt((String) imp_pars.getProperty("IND_PARS_ELEVATION"));
-			ind_pars_scenes =           Integer.parseInt((String) imp_pars.getProperty("IND_PARS_SCENES"));
+			ind_pars[TVAO_SCENE_OFFSET] =           Integer.parseInt((String) imp_pars.getProperty("IND_PARS_SCENES"));
 			par_index = new int[TVAO_TYPES][];
 			for (int n = 0; n < par_index.length; n++) {
@@ -3826,20 +3929,20 @@ public class VegetationLMA {
 			//			private int [][]          par_index;       // indices -  [0..4][full_pixel] - same as for tvao, value - parameter index
 			//			private int [][]          par_rindex;      // parameter -> pair of type (0..4) and full window pixel index
 			int [] par_nums = {
-					num_pars_terrain,
+					num_pars[TVAO_TERRAIN],
-					num_pars_vegetation,
+					num_pars[TVAO_VEGETATION],
-					num_pars_alpha,
+					num_pars[TVAO_ALPHA],
-					num_pars_elevation,
+					num_pars[TVAO_ELEVATION],
-					num_pars_scenes};
+					num_pars[TVAO_SCENE_OFFSET]};
 		/*
-			par_index[TVAO_TERRAIN] =      new int [num_pars_terrain];
+			par_index[TVAO_TERRAIN] =      new int [num_pars[TVAO_TERRAIN]];
-			par_index[TVAO_VEGETATION] =   new int [num_pars_vegetation];
+			par_index[TVAO_VEGETATION] =   new int [num_pars[TVAO_VEGETATION]];
-			par_index[TVAO_ALPHA] =        new int [num_pars_alpha];
+			par_index[TVAO_ALPHA] =        new int [num_pars[TVAO_ALPHA]];
-			par_index[TVAO_ELEVATION] =    new int [num_pars_elevation];
+			par_index[TVAO_ELEVATION] =    new int [num_pars[TVAO_ELEVATION]];
-			par_index[TVAO_SCENE_OFFSET] = new int [num_pars_scenes];
+			par_index[TVAO_SCENE_OFFSET] = new int [num_pars[TVAO_SCENE_OFFSET]];
 		 */
 			samples_pointers = new int [SAMPLES_SIZE][3];
 			for (int nsp = 0; nsp < SAMPLES_SIZE; nsp++) {
@@ -4498,11 +4601,10 @@ public class VegetationLMA {
 			final double [] scene_weights_in,
 			final double reg_weights,
 			final double hifreq_weight) {
+//		double terrain_correction_weight = 1.0;
 		boolean use_hf =   (y_src_hf != null);
 		int y_avg_len = y_vector.length - (y_src.length + ((y_src_hf != null) ? y_src_hf.length : 0));
-//		boolean use_terr_corr = y_vector.length > y_lf_hf_len;
 		boolean use_scenes_pull0 = (scenes_pull0 >=0);
 		// using >=0 no use 0 as NOP but reserve space, <0 - do not reserve space
 		samples_pointers = new int [SAMPLES_SIZE][3]; // {start, length}
@@ -4517,50 +4619,42 @@ public class VegetationLMA {
 			samples_pointers[SAMPLES_SCENES][1] =          1;
 		}
 		if  (fits[TVAO_ALPHA] && ((alpha_loss > 0) || (alpha_push > 0))) {
-			samples_pointers[SAMPLES_ALPHA_PULL][1] =      num_pars_alpha;
+			samples_pointers[SAMPLES_ALPHA_PULL][1] =      num_pars[TVAO_ALPHA];
-			samples_pointers[SAMPLES_ALPHA_PULL][2] =      ind_pars_alpha;
+			samples_pointers[SAMPLES_ALPHA_PULL][2] =      ind_pars[TVAO_ALPHA];
 		}
 		if  (fits[TVAO_ALPHA] && (alpha_lpf >= 0)) {
-			samples_pointers[SAMPLES_ALPHA_LPF][1] =       num_pars_alpha;
+			samples_pointers[SAMPLES_ALPHA_LPF][1] =       num_pars[TVAO_ALPHA];
-			samples_pointers[SAMPLES_ALPHA_LPF][2] =      ind_pars_alpha;
+			samples_pointers[SAMPLES_ALPHA_LPF][2] =      ind_pars[TVAO_ALPHA];
 		}
 		if  (fits[TVAO_TERRAIN] && (terr_pull0 >= 0)) {
-			samples_pointers[SAMPLES_TERRAIN_PULL][1] =    num_pars_terrain;
+			samples_pointers[SAMPLES_TERRAIN_PULL][1] =    num_pars[TVAO_TERRAIN];
-			samples_pointers[SAMPLES_TERRAIN_PULL][2] =    ind_pars_terrain;
+			samples_pointers[SAMPLES_TERRAIN_PULL][2] =    ind_pars[TVAO_TERRAIN];
 		}
 		if  (fits[TVAO_TERRAIN] && (terr_lpf >= 0)) {
-			samples_pointers[SAMPLES_TERRAIN_LPF][1] =     num_pars_terrain;
+			samples_pointers[SAMPLES_TERRAIN_LPF][1] =     num_pars[TVAO_TERRAIN];
-			samples_pointers[SAMPLES_TERRAIN_LPF][2] =     ind_pars_terrain;
+			samples_pointers[SAMPLES_TERRAIN_LPF][2] =     ind_pars[TVAO_TERRAIN];
 		}
 		if  (fits[TVAO_VEGETATION] && (veget_pull0 >= 0)) {
-			samples_pointers[SAMPLES_VEGETATION_PULL][1] = num_pars_vegetation;
+			samples_pointers[SAMPLES_VEGETATION_PULL][1] = num_pars[TVAO_VEGETATION];
-			samples_pointers[SAMPLES_VEGETATION_PULL][2] = ind_pars_vegetation;
+			samples_pointers[SAMPLES_VEGETATION_PULL][2] = ind_pars[TVAO_VEGETATION];
 		}
 		if  (fits[TVAO_VEGETATION] && (veget_lpf >= 0)) {
-			samples_pointers[SAMPLES_VEGETATION_LPF][1] =  num_pars_vegetation;
+			samples_pointers[SAMPLES_VEGETATION_LPF][1] =  num_pars[TVAO_VEGETATION];
-			samples_pointers[SAMPLES_VEGETATION_LPF][2] =  ind_pars_vegetation;
+			samples_pointers[SAMPLES_VEGETATION_LPF][2] =  ind_pars[TVAO_VEGETATION];
 		}
 		if  (fits[TVAO_ELEVATION] && (veget_pull0 >= 0)) {
-			samples_pointers[SAMPLES_ELEVATION_PULL][1] =  num_pars_elevation;
+			samples_pointers[SAMPLES_ELEVATION_PULL][1] =  num_pars[TVAO_ELEVATION];
-			samples_pointers[SAMPLES_ELEVATION_PULL][2] =  ind_pars_elevation;
+			samples_pointers[SAMPLES_ELEVATION_PULL][2] =  ind_pars[TVAO_ELEVATION];
 		}
 		if  (fits[TVAO_ELEVATION] && (veget_lpf >= 0)) {
-			samples_pointers[SAMPLES_ELEVATION_LPF][1] =   num_pars_elevation;
+			samples_pointers[SAMPLES_ELEVATION_LPF][1] =   num_pars[TVAO_ELEVATION];
-			samples_pointers[SAMPLES_ELEVATION_LPF][2] =   ind_pars_elevation;
+			samples_pointers[SAMPLES_ELEVATION_LPF][2] =   ind_pars[TVAO_ELEVATION];
 		}
 		for (int i = 1; i < samples_pointers.length; i++) {
 			samples_pointers[i][0] = samples_pointers[i-1][0] + samples_pointers[i-1][1];  
 		}
 		samples_pointers[SAMPLES_TOTAL][1] = samples_pointers[SAMPLES_TOTAL][0] - samples_pointers[SAMPLES_EXTRA][0];
-		/*
-		//(alpha_loss > 0)
-		if (use_scenes_pull0) extra_samples += 1;
-		if ((alpha_loss > 0) || (alpha_push > 0)) extra_samples+= num_pars_alpha; // need to split loss (always positive) from alpha_lpf
-		if (alpha_lpf >= 0)                       extra_samples+= num_pars_alpha;
-		if (terr_lpf >= 0)                        extra_samples+= num_pars_terrain;
-		if (veget_lpf >= 0)                       extra_samples+= num_pars_vegetation;
-		if (elevation_lpf >= 0)                   extra_samples+= num_pars_elevation;
-        */
 		int extra_samples = samples_pointers[SAMPLES_TOTAL][1];
 		double reg_sample_weight = reg_weights/extra_samples; // weight of each regularization sample
@@ -4590,7 +4684,7 @@ public class VegetationLMA {
 		if (y_avg_len > 0) {
 			for (int ny = 0; ny < y_avg_len; ny++) {
-				s += terrain_correction; // scene_weights[nscene] is included in y_wavg and fX, jt
+				s += terrain_correction_weight; // scene_weights[nscene] is included in y_wavg and fX, jt
 			}
 		}
@@ -4601,7 +4695,6 @@ public class VegetationLMA {
 		final double k = 1.0/s;
 		weight_pure = s0/s;
 		scale_scenes_pull = scenes_pull0 * extra_samples / s_scenes; // or use extra_samples instead of woi.width*woi.height ?
 		final Thread[] threads = ImageDtt.newThreadArray(QuadCLT.THREADS_MAX);
 		final AtomicInteger ai = new AtomicInteger(0);
 		for (int ithread = 0; ithread < threads.length; ithread++) {
@@ -4620,7 +4713,7 @@ public class VegetationLMA {
 								System.out.println("weights["+nw+"]=NaN - 2");
 							}
 						} else if (nw  < samples_pointers[SAMPLES_EXTRA][0]) {	// y_wavg if exists
-							weights[nw] = k * terrain_correction;
+							weights[nw] = k * terrain_correction_weight;
 							if (Double.isNaN(weights[nw])) {
 								System.out.println("weights["+nw+"]=NaN - 3");
 							}
@@ -4639,6 +4732,231 @@ public class VegetationLMA {
 		return;
 	}
+	public double [][] getTransparency(// [scene][windx]
+			final double [] vector){
+		final int woi_length = woi.width*woi.height;
+		final double [][] transparency = new double [num_scenes][woi_length];
+		for (int nscene = 0; nscene < num_scenes; nscene++) {
+			Arrays.fill(transparency[nscene], Double.NaN);
+		}
+		double [][] extra_data = new double [1][]; // [0] will be alpha mapped to elevation offsets
+		getFxDerivs(
+				vector,     // final double []   vector,
+				null,       // final double [][] jt, // should be null or initialized with [vector.length][]
+				extra_data, // final double [][] debug_data, // {elev* alpha shifted, terrain *(1-alpha) shifted, elev_sum_weights} 
+				-1);        // final int         debug_level)
+		double [] alpha = extra_data[0]; 
+		final Thread[] threads = ImageDtt.newThreadArray(QuadCLT.THREADS_MAX);
+		final AtomicInteger ai = new AtomicInteger(0);
+		for (int ithread = 0; ithread < threads.length; ithread++) {
+			threads[ithread] = new Thread() {
+				public void run() {
+					for (int ny = ai.getAndIncrement(); ny < y_src.length; ny = ai.getAndIncrement()) {
+						int nscene =   y_src[ny][YSRC_SCENE];
+						int findx =     y_src[ny][YSRC_FINDEX];
+						int windx = getWindexFromFindex(findx);
+						double t = 1.0 -  alpha[ny];
+						transparency[nscene][windx] = t;
+					}
+				}
+			};
+		}		      
+		ImageDtt.startAndJoin(threads);
+		return transparency;
+	}
+	public double [][] getTransparenctWeights(
+			final double [][] transparency,
+			final double      transparency_opaque,
+			final double      transparency_pedestal,
+			final double      transparency_frac,
+			final double      transparency_dist){ //0 - do not apply
+		final int dbg_windx = 113;
+		final int woi_length = woi.width*woi.height; 
+		final double [][] transparency_weights =  new double [num_scenes][woi_length];
+		final Thread[] threads = ImageDtt.newThreadArray(QuadCLT.THREADS_MAX);
+		final AtomicInteger ai = new AtomicInteger(0);
+		for (int nscene = 0; nscene < num_scenes; nscene++) {
+			Arrays.fill(transparency_weights[nscene], Double.NaN);
+		}
+		for (int ithread = 0; ithread < threads.length; ithread++) {
+			threads[ithread] = new Thread() {
+				public void run() {
+					double [] transp = new double [num_scenes];
+					for (int wPix = ai.getAndIncrement(); wPix < woi_length; wPix = ai.getAndIncrement()) {
+						if (wPix == dbg_windx) {
+							System.out.println("getTransparenctWeights(): wPix="+wPix);
+						}
+						Arrays.fill(transp, Double.NaN);
+						double t_max = Double.NaN;
+						int n_max = -1;
+						for (int nscene = 0; nscene < transp.length; nscene++) {
+							double t = transparency[nscene][wPix];
+							transp[nscene] = t;
+							if (!Double.isNaN(t) && !(t_max >= t)) {
+								t_max = t;
+								n_max = nscene;
+							}
+						}
+						if (!Double.isNaN(t_max)) {
+							double t_max_offs = t_max - transparency_opaque;
+							if (t_max_offs > 0) {
+								int fpix = getFindexFromWindex(wPix);
+								double [] scale_xy_max = scales_xy[n_max][fpix];
+								for (int nscene = 0; nscene < transp.length; nscene++) if (!Double.isNaN(transp[nscene])){
+									double tf = (transp[nscene] - transparency_opaque) / t_max_offs;
+									if (tf >= transparency_frac) {
+										if (transparency_dist > 0) {
+											double scale_dist = 0;
+											double [] scale_xy = scales_xy[nscene][fpix];
+											if ((scale_xy_max != null) && (scale_xy != null)) {
+												double dx = scale_xy[0] - scale_xy_max[0];
+												double dy = scale_xy[1] - scale_xy_max[1];
+												scale_dist = Math.sqrt(dx*dx+dy*dy);
+											}
+											tf *= (scale_dist + transparency_dist)/transparency_dist;
+										}
+									} else {
+										tf = 0;
+									}
+									transparency_weights[nscene][wPix] = tf + transparency_pedestal;  // all those that were not NaN will be at least transparency_pedestal
+								}							
+							} else {
+								for (int nscene = 0; nscene < transp.length; nscene++) if (!Double.isNaN(transp[nscene])){
+									transparency_weights[nscene][wPix] = transparency_pedestal;
+								}
+							}
+						}
+					}
+				}
+			};
+		}		      
+		ImageDtt.startAndJoin(threads);
+		return transparency_weights;
+	}
+	public void applyTransparency(
+			final double []   vector,
+			final double      transparency_opaque,
+			final double      transparency_pedestal,
+			final double      transparency_frac,
+			final double      transparency_dist,			
+			final boolean     recalc_average) {
+		this.recalc_average = recalc_average;
+		final int woi_length = woi.width*woi.height; 
+		boolean use_hf =   (y_src_hf != null);		
+		int y_avg_len = y_vector.length - (y_src.length + ((y_src_hf != null) ? y_src_hf.length : 0));
+		double [][] transparency = getTransparency((vector==null)? parameters_vector:vector);
+		double [][] transparency_weights = getTransparenctWeights(
+				transparency,          // final double [][] transparency,
+				transparency_opaque,   // final double      transparency_opaque,
+				transparency_pedestal, // final double      transparency_pedestal,
+				transparency_frac,     // final double      transparency_frac,
+				transparency_dist);    // final double      transparency_dist); //0 - do not apply
+		double s = 0, ss=0;
+		for (int ny = 0; ny < y_src.length; ny++) {
+			int nscene =  y_src[ny][YSRC_SCENE];
+			int findx =   y_src[ny][YSRC_FINDEX];
+			int windx =   getWindexFromFindex(findx);
+			double w = transparency_weights[nscene][windx];
+			if (Double.isNaN(w)) {
+				System.out.println("applyTransparency() 1: ny="+ny+", nscene="+nscene+", findx="+findx+", windx="+windx+", w="+w);
+			} else {
+				s += w;
+			}
+			ss += scene_weights[nscene];
+		}
+//		double s_scenes = s; // sum of all scene weight. Maybe skip scenes that do not exist?
+		double s_to_ss = s/ss;
+		if (use_hf) { // second pass, repeating for possible future modifications
+			for (int ny = 0; ny < y_src_hf.length; ny++) {
+				int nscene =   y_src_hf[ny][YSRC_SCENE];
+				int findx =    y_src_hf[ny][YSRC_FINDEX];
+				int windx =   getWindexFromFindex(findx);
+				double w = transparency_weights[nscene][windx] * hifreq_weight ;
+				if (Double.isNaN(w)) {
+					System.out.println("applyTransparency() 2: ny="+ny+", nscene="+nscene+", findx="+findx+", windx="+windx+", w="+w);
+				} else {
+					s += w;
+				}
+			}
+		}
+//		double s_y_yhf =    s; // 
+		// TODO: If using transparency_weights (in setupYVectorTransparency and getFxDerivs),
+		// then calculate following weights differently to keep ~ the same sum
+		// use recalc_average / this.recalc_average to change weights
+		if (y_avg_len > 0) {
+			for (int ny = 0; ny < y_avg_len; ny++) {
+				s += terrain_correction_weight; // scene_weights[nscene] is included in y_wavg and fX, jt
+			}
+		}
+///		final double s0 = s;
+		s *= (1+ reg_weights);
+		final double k = 1.0/s; //corr_transp	10.85811847216958
+		weight_to_scene_weight = k * s_to_ss;
+///		weight_pure = s0/s;
+		final Thread[] threads = ImageDtt.newThreadArray(QuadCLT.THREADS_MAX);
+		final AtomicInteger ai = new AtomicInteger(0);
+		for (int ithread = 0; ithread < threads.length; ithread++) {
+			threads[ithread] = new Thread() {
+				public void run() {
+					for (int nw = ai.getAndIncrement(); nw < weights.length; nw = ai.getAndIncrement()) {
+						if (nw  < samples_pointers[SAMPLES_Y_HF][0]) { // DC differences
+							int ny = nw;
+							int nscene =  y_src[ny][YSRC_SCENE];
+							int findx =   y_src[ny][YSRC_FINDEX];
+							int windx =   getWindexFromFindex(findx);
+							double w = transparency_weights[nscene][windx] * k;
+							if (!Double.isNaN(w)) {
+								weights[nw] = w;
+							} else {
+								System.out.println("weights["+nw+"]=NaN - 1");
+							}
+						} else if (nw  < samples_pointers[SAMPLES_Y_AVG][0]) {	// HF differences if exist
+							int ny = nw-y_src.length;
+							int nscene =  y_src_hf[ny][YSRC_SCENE];
+							int findx =   y_src_hf[ny][YSRC_FINDEX];
+							int windx =   getWindexFromFindex(findx);
+							double w = transparency_weights[nscene][windx] * k * hifreq_weight; // scene_weights[nscene] * k * hifreq_weight;
+							if (!Double.isNaN(w)) {
+								weights[nw] = w;
+							} else {
+								System.out.println("weights["+nw+"]=NaN - 2");
+							}
+						} else if (nw  < samples_pointers[SAMPLES_EXTRA][0]) {	// y_wavg if exists
+							weights[nw] = k * terrain_correction_weight;
+							if (Double.isNaN(weights[nw])) {
+								System.out.println("weights["+nw+"]=NaN - 3");
+							}
+						/*	
+						} else {
+							weights[nw] = reg_sample_weight;
+							if (Double.isNaN(weights[nw])) {
+								System.out.println("weights["+nw+"]=NaN - 4");
+							}
+*/							
+						}
+					}
+				}
+			};
+		}		      
+		ImageDtt.startAndJoin(threads);
+		if (y_src_hf != null) { // set average offset y - either old way with scene_weights[nscene] or new way with weights[ny]
+			setupYVectorTransparency();
+		}
+		return;
+	}
 	private void setupYVector(
 			boolean use_terr_corr,
 			double [] scene_weights) {
@@ -4737,11 +5055,83 @@ public class VegetationLMA {
 		return;
 	}
+	private void setupYVectorTransparency() { // this.recalc_average should be already set
+//			boolean use_transparency) {
+//		this.recalc_average = use_transparency;
+		final int dbg_windx = -142;
+		final int woi_length = woi.width*woi.height;
+		final int terr_start = y_src.length + ((y_src_hf != null)? y_src_hf.length : 0);
+//		final int ds_length =  terr_start + (use_terr_corr? woi_length: 0);
+//		final int ds_length =  terr_start + woi_length;
+		final Thread[] threads = ImageDtt.newThreadArray(QuadCLT.THREADS_MAX);
+		final AtomicInteger ai = new AtomicInteger(0);
+		final AtomicInteger ati = new AtomicInteger(0);
+		final double [][] y_wavg_threads =    new double [threads.length][woi_length];
+//		y_wavg = new double[woi_length];
+		for (int ithread = 0; ithread < threads.length; ithread++) {
+			threads[ithread] = new Thread() {
+				int nthread = ati.getAndIncrement();
+				public void run() {
+					for (int ny = ai.getAndIncrement(); ny < y_src.length; ny = ai.getAndIncrement()) {
+						int nscene =   y_src[ny][YSRC_SCENE];
+						int indx =     y_src[ny][YSRC_FINDEX];
+						int windx = getWindexFromFindex(indx);
+//						double d =y_vector[ny] * scene_weights[nscene];
+						double w = recalc_average ? (weights[ny] / weight_to_scene_weight): scene_weights[nscene];
+						w *= terrain_correction;
+						double d =y_vector[ny] * w;
+						if (Double.isNaN(d)) {
+							System.out.println("y_vector["+ny+"]*scene_weights["+nscene+"]=NaN");
+						}
+						y_wavg_threads[nthread][windx] += d; 
+						if (windx== dbg_windx) {
+							System.out.println("setupYVector(): nscene="+nscene+", nthread="+nthread+
+									" y_vector["+ny+"]="+y_vector[ny]+" scene_weights["+nscene+"]="+scene_weights[nscene]+" d="+d);
+						}
+					}
+				}
+			};
+		}		      
+		ImageDtt.startAndJoin(threads);
+		ai.set(0);
+		for (int ithread = 0; ithread < threads.length; ithread++) {
+			threads[ithread] = new Thread() {
+				public void run() {
+					for (int wIndx = ai.getAndIncrement(); wIndx < woi_length; wIndx = ai.getAndIncrement()) {
+						double swy = 0;
+						if (wIndx== dbg_windx) {
+							System.out.println("setupYVector(): wIndx="+wIndx);
+						}
+						for (int nthread = 0; nthread < threads.length; nthread++) {
+							swy +=y_wavg_threads[nthread][wIndx];
+						}
+						if (Double.isNaN(swy)) {
+							System.out.println("y_vector["+(wIndx+terr_start)+"]=NaN");
+						}
+						y_vector[wIndx+terr_start] = swy; // /sw; (fX uses the same weights)
+					}
+				}
+			};
+		}		      
+		ImageDtt.startAndJoin(threads);
+		return;
+	}
 	private int getWindexFromFindex(int findex) {
 		int wx = (findex % full.width) - woi.x;
 		int wy = (findex / full.width) - woi.y;
 		return wx + wy*woi.width;
 	}
+	private int getFindexFromWindex(int windex) {
+		int x = (windex % woi.width) + woi.x;
+		int y = (windex / woi.width) + woi.y;
+		return x + y*full.width;
+	}
 	/*
 	private void setupYWavg( double [] scene_weights) {
 		final int woi_length = woi.width*woi.height;
@@ -4791,8 +5181,8 @@ public class VegetationLMA {
 */
 	private int [][] getNeighbors(
 			final int tvao,        // TVAO_VEGETATION_ALPHA
-			final int ind_samples, // ind_pars_vegetation_alpha
+			final int ind_samples, // ind_pars[TVAO_VEGETATION]_alpha
-			final int num_samples  // num_pars_vegetation_alpha
+			final int num_samples  // num_pars[TVAO_VEGETATION]_alpha
 			){
 		final int [][] alpha_neibs = new int[num_samples][4];
 		final Thread[] threads = ImageDtt.newThreadArray(QuadCLT.THREADS_MAX);
@@ -4821,7 +5211,7 @@ public class VegetationLMA {
 			};
 		}		      
 		ImageDtt.startAndJoin(threads);
-		//ind_pars_vegetation_alpha
+		//ind_pars[TVAO_VEGETATION]_alpha
 		return alpha_neibs;
 	}
@@ -4967,7 +5357,7 @@ public class VegetationLMA {
 		Arrays.fill(par_index[TVAO_ELEVATION],   -1);
 		Arrays.fill(par_index[TVAO_SCENE_OFFSET],-1);
 		int par_num = 0;
-		ind_pars_terrain = 0;
+		ind_pars[TVAO_TERRAIN] = 0;
 		if (fits[TVAO_TERRAIN]) {
 			for (int drow = 0; drow < woi.height; drow++) { // use inner woi for terrain
 				int row = woi.y + drow;
@@ -4983,8 +5373,8 @@ public class VegetationLMA {
 				}
 			}
 		}
-		num_pars_terrain =    par_num;
+		num_pars[TVAO_TERRAIN] =    par_num;
-		ind_pars_vegetation = par_num;
+		ind_pars[TVAO_VEGETATION] = par_num;
 		if (fits[TVAO_VEGETATION]) {
 			for (int drow = 0; drow < woi_veg.height; drow++) {
@@ -5003,8 +5393,8 @@ public class VegetationLMA {
 				}
 			}
 		}
-		ind_pars_alpha = par_num;
+		ind_pars[TVAO_ALPHA] = par_num;
-		num_pars_vegetation = par_num - ind_pars_vegetation;
+		num_pars[TVAO_VEGETATION] = par_num - ind_pars[TVAO_VEGETATION];
 		if (fits[TVAO_ALPHA]) {
 			for (int drow = 0; drow < woi_veg.height; drow++) {
 				int row = woi_veg.y + drow;
@@ -5022,8 +5412,8 @@ public class VegetationLMA {
 				}
 			}
 		}
-		num_pars_alpha = par_num - ind_pars_alpha; // normally should be == num_pars_vegetation
+		num_pars[TVAO_ALPHA] = par_num - ind_pars[TVAO_ALPHA]; // normally should be == num_pars[TVAO_VEGETATION]
-		ind_pars_elevation =    par_num;
+		ind_pars[TVAO_ELEVATION] =    par_num;
 		if (fits[TVAO_ELEVATION]) {
 			for (int drow = 0; drow < woi_veg.height; drow++) {
 				int row = woi_veg.y + drow;
@@ -5041,8 +5431,8 @@ public class VegetationLMA {
 				}
 			}
 		}
-		num_pars_elevation = par_num - ind_pars_elevation; // normally should be == num_pars_vegetation
+		num_pars[TVAO_ELEVATION] = par_num - ind_pars[TVAO_ELEVATION]; // normally should be == num_pars[TVAO_VEGETATION]
-		ind_pars_scenes =    par_num;
+		ind_pars[TVAO_SCENE_OFFSET] =    par_num;
 		if (fits[TVAO_SCENE_OFFSET]) {
 			for (int nscene = 0; nscene < num_scenes; nscene++) {
 				if (valid_scenes [nscene]) {
@@ -5052,7 +5442,7 @@ public class VegetationLMA {
 				}
 			}
 		}
-		num_pars_scenes = par_num - ind_pars_scenes;
+		num_pars[TVAO_SCENE_OFFSET] = par_num - ind_pars[TVAO_SCENE_OFFSET];
 		this.par_rindex = new int [par_num][2];
 		System.arraycopy(par_rindex, 0, this.par_rindex, 0, par_num);
 		parameters_vector = new double [par_num];
@@ -5752,8 +6142,86 @@ public class VegetationLMA {
 		return max_warps;	
 	}
+	private boolean disabledParams() {
+		for (boolean dis:fits_disable) if (dis){
+			return true;
+		}
+		return false;
+	}
+	/**
+	 * Convert from full parameter index to decimated parameter index (and vice versa)
+	 * @return [0] - decimated parameter index for full parameter index (-1 for missing ones)
+	 *         [1] - full parameter index for decimated index
+	 */
+	private int [][] getParsAllDecimatedAllIndices() {
+		int []            num_pars_decim = new int [TVAO_TYPES];
+		int []            ind_pars_decim = new int [TVAO_TYPES];
+		int ind_next = 0;
+		for (int typ = 0; typ < TVAO_TYPES; typ++) {
+			ind_pars_decim[typ] = ind_next;
+			int len = fits_disable[typ]? 0 : num_pars[typ];
+			num_pars_decim[typ] = len;
+			ind_next += len;
+		}
+		int [][] pars_map = new int [2][];
+		pars_map[0] = new int[par_rindex.length];
+		Arrays.fill(pars_map[0], -1);
+		pars_map[1] = new int[ind_next]; // number of parameters after decimation
+		for (int typ = 0; typ < TVAO_TYPES; typ++) if (num_pars_decim[typ] > 0) {
+			for (int i = 0; i < num_pars_decim[typ]; i++) {
+				int indx_all =   ind_pars[typ];
+				int indx_decim = ind_pars_decim[typ];
+				pars_map[0][indx_all +   i] = indx_decim+i;
+				pars_map[1][indx_decim + i] = indx_all+i;
+			}
+		}
+		return pars_map; // [0] - full parameter index to decimated parameter index (-1 - none), [1] decimated index to full index
+	}
+	public static double [][] decimateJt(
+			final int    [][] par_map, // // only [1] used
+			final double [][] jt_full) {
+		if (par_map == null) {
+			return jt_full;
+		}
+		final double [][] jt = new double [par_map[1].length][jt_full[0].length];
+		final Thread[] threads = ImageDtt.newThreadArray();
+		final AtomicInteger ai = new AtomicInteger(0);
+		for (int ithread = 0; ithread < threads.length; ithread++) {
+			threads[ithread] = new Thread() {
+				public void run() {
+					for (int indx_decim = ai.getAndIncrement(); indx_decim < jt.length; indx_decim = ai.getAndIncrement()) {
+						jt[indx_decim] = jt_full[par_map[1][indx_decim]];
+					}
+				}
+			};
+		}
+		ImageDtt.startAndJoin(threads);
+		return jt;
+	}
+	public static double [] expandDecimated(
+			final int    [][] par_map, // only [0] used
+			final double [] data_decimated) {
+		if (par_map == null) {
+			return data_decimated;
+		}
+		final double [] data_full = new double [par_map[0].length];
+		final Thread[] threads = ImageDtt.newThreadArray();
+		final AtomicInteger ai = new AtomicInteger(0);
+		for (int ithread = 0; ithread < threads.length; ithread++) {
+			threads[ithread] = new Thread() {
+				public void run() {
+					for (int indx_decim = ai.getAndIncrement(); indx_decim < data_decimated.length; indx_decim = ai.getAndIncrement()) {
+						int indx = par_map[0][indx_decim];
+						data_full[indx_decim] = (indx >= 0) ? data_decimated[indx] : 0.0;
+					}
+				}
+			};
+		}
+		ImageDtt.startAndJoin(threads);
+		return data_full;
+	}
 }
--- a/src/main/java/com/elphel/imagej/vegetation/VegetationModel.java
+++ b/src/main/java/com/elphel/imagej/vegetation/VegetationModel.java
@@ -1450,6 +1450,8 @@ public class VegetationModel {
 		boolean   fit_scenes =        clt_parameters.imp.terr_fit_scenes;     // true;  // adjust scene offsets (start from 0 always?)
 		boolean   fit_elevations =    clt_parameters.imp.terr_fit_elevations; // false; // adjust elevation pixels (not yet implemented)
+		boolean [] fit_disable =      clt_parameters.imp.terr_fit_disable.clone();  
 		double    reg_weights =       clt_parameters.imp.terr_reg_weights;         // 0.25;        // fraction of the total weight used for regularization
 		double    lambda =            clt_parameters.imp.terr_lambda;              // 5.0; // 0.1;
 		double    lambda_scale_good = clt_parameters.imp.terr_lambda_scale_good;   // 0.5;
@@ -1480,7 +1482,12 @@ public class VegetationModel {
 		boolean     show_final_result = !tile_woi; // true; (maybe make saving results in tiled mode?
+		boolean   recalc_weights =        clt_parameters.imp.terr_recalc_weights ;      //false; // recalculate weight depending on terrain visibility
+		double    transparency_opaque =   1.0 - clt_parameters.imp.terr_recalc_opaque ; // 0.9;  // above is opaque  
+		double    transparency_pedestal = clt_parameters.imp.terr_recalc_pedestal ;     // 0.05; // weight of opaque tiles  
+		double    transparency_frac =     clt_parameters.imp.terr_recalc_frac ;         // 1.0;  // increase weight for far pixels (double if scale differece == this)  
+		double    transparency_dist =     clt_parameters.imp.terr_recalc_dist ;         // 0.05; // weight of opaque tiles  
+		boolean   recalc_average =        clt_parameters.imp.terr_recalc_average ;      //false; // apply transparency to average mismatch
 //clt_parameters.imp.; // 		
@@ -2005,6 +2012,7 @@ public class VegetationModel {
 					fit_alpha,      // final boolean            adjust_alpha,
 					fit_scenes,     // final boolean            adjust_scenes,
 					fit_elevations, // final boolean            adjust_elevations,
+					fit_disable,    // final boolean []         fit_disable,  
 					reg_weights,   // final double             reg_weights,        // fraction of the total weight used for regularization
 					alpha_loss,    // final double             alpha_loss,         // quadratic loss when alpha reaches -1.0 or 2.0 
 					alpha_offset,  // final double             alpha_offset,       // quadratic loss when alpha reaches -1.0 or 2.0
@@ -2059,6 +2067,15 @@ public class VegetationModel {
 						par_path, // String        path,
 						true,     // boolean       keep_settings,
 						null);    // Rectangle [] file_wois);      //  if not null, should be Rectangle[2] {woi_veg,woi} - will return woi data and not input parameters to this instance
+				if (recalc_weights) {
+					vegetationLMA.applyTransparency(
+							null,                  // final double []   vector,
+							transparency_opaque,   // final double      transparency_opaque,
+							transparency_pedestal, // final double      transparency_pedestal,
+							transparency_frac,     // final double      transparency_frac,
+							transparency_dist,     // final double      transparency_dist,			
+							recalc_average);       // final boolean     recalc_average);
+				}
 			}
 			// old 
 			if ("RESTORE".equals(par_path)) {
@@ -2074,7 +2091,7 @@ public class VegetationModel {
 				}
 			}
-			if ((show_final_result) && (debugLevel > 0)) {
+			if ((show_final_result) && (debugLevel > -2)) { // 0)) {
 				String reconstructed_title = reference_scene+"-reconstructed-initial";
 				vegetationLMA.showYfX(
 						null, // double [] vector,
@@ -2127,6 +2144,16 @@ public class VegetationModel {
 	  			elev_pull0 *= 0.01;
 	  			vegetationLMA.elevation_pull0 = elev_pull0;
+				if (recalc_weights) {
+					vegetationLMA.applyTransparency(
+							null,                  // final double []   vector,
+							transparency_opaque,   // final double      transparency_opaque,
+							transparency_pedestal, // final double      transparency_pedestal,
+							transparency_frac,     // final double      transparency_frac,
+							transparency_dist,     // final double      transparency_dist,			
+							recalc_average);       // final boolean     recalc_average);				}
+				}
 	  			if (debugLevel > -3) {
 	  				lma_rslt= vegetationLMA.runLma( // <0 - failed, >=0 iteration number (1 - immediately)
 	  						lambda,           // double lambda,           // 0.1