working on large cluster in low-contarst (clouds in the sky)

src/main/java/com/elphel/imagej/cameras/CLTParameters.java

@@ -24,6 +24,7 @@ public class CLTParameters {
 	public double     shift_x =           0.0;
 	public double     shift_y =           0.0;
 	public int        tileStep =            4;  // process tileStep x tileStep cluster of tiles when adjusting lazy eye parameters
+	public int        super_radius =        2;  // Consolidate multiple clusterts for low-contrast infinity (clouds in the sky) 0 - none, 1 - 3x3, 2 - 5x5,
 	public int        iclt_mask =          15;  // which transforms to combine
 	public int        tileX =            -258;  // number of kernel tile (0..163)
 	public int        tileY =             133;  // number of kernel tile (0..122)
@@ -899,6 +900,7 @@ public class CLTParameters {
 		properties.setProperty(prefix+"shift_x",                    this.shift_x+"");
 		properties.setProperty(prefix+"shift_y",                    this.shift_y+"");
 		properties.setProperty(prefix+"tileStep",                   this.tileStep+"");
+		properties.setProperty(prefix+"tileSizeBg",                 this.super_radius+"");
 		properties.setProperty(prefix+"iclt_mask",                  this.iclt_mask+"");
 		properties.setProperty(prefix+"tileX",                      this.tileX+"");
 		properties.setProperty(prefix+"tileY",                      this.tileY+"");
@@ -1668,6 +1670,7 @@ public class CLTParameters {
 		if (properties.getProperty(prefix+"shift_y")!=null)                       this.shift_y=Double.parseDouble(properties.getProperty(prefix+"shift_y"));
 
 		if (properties.getProperty(prefix+"tileStep")!=null)                      this.tileStep=Integer.parseInt(properties.getProperty(prefix+"tileStep"));
+		if (properties.getProperty(prefix+"tileSizeBg")!=null)                    this.super_radius=Integer.parseInt(properties.getProperty(prefix+"tileSizeBg"));
 		if (properties.getProperty(prefix+"iclt_mask")!=null)                     this.iclt_mask=Integer.parseInt(properties.getProperty(prefix+"iclt_mask"));
 		if (properties.getProperty(prefix+"tileX")!=null)                         this.tileX=Integer.parseInt(properties.getProperty(prefix+"tileX"));
 		if (properties.getProperty(prefix+"tileY")!=null)                         this.tileY=Integer.parseInt(properties.getProperty(prefix+"tileY"));
@@ -2456,6 +2459,8 @@ public class CLTParameters {
 
 		gd.addNumericField("Lazy eye cluster size",                                                             this.tileStep,                  0, 6, "tiles",
 				"Process tileStep x tileStep cluster of tiles when adjusting lazy eye parameters");
+		gd.addNumericField("Consolidate multiple clusterts around given for low-contrast infinity",             this.super_radius,              0, 6, "clusters",
+				"e.g. for clouds in tghe sky  0 - none, 1 - 3x3, 2 - 5x5");
 		gd.addNumericField("Bit mask - which of 4 transforms to combine after iclt",                            this.iclt_mask,                 0);
 		gd.addNumericField("Tile X to extract (0..163)",                                                        this.tileX,                     0);
 		gd.addNumericField("Tile Y to extract (0..122)",                                                        this.tileY,                     0);
@@ -3392,6 +3397,7 @@ public class CLTParameters {
 		this.shift_y =              gd.getNextNumber();
 
 		this.tileStep=        (int) gd.getNextNumber();
+		this.super_radius=    (int) gd.getNextNumber();
 		this.iclt_mask=       (int) gd.getNextNumber();
 		this.tileX=           (int) gd.getNextNumber();
 		this.tileY=           (int) gd.getNextNumber();

src/main/java/com/elphel/imagej/correction/Eyesis_Correction.java

@@ -631,6 +631,7 @@ private Panel panel1,
 			addButton("CLT disparity scan",        panelClt2, color_conf_process);
 			addButton("CLT reset fine corr",       panelClt2, color_stop);
 			addButton("CLT reset extrinsic corr",  panelClt2, color_stop);
+			addButton("ERS reset",      panelClt2, color_stop);
 			addButton("CLT show geometry",         panelClt2, color_configure);
 			addButton("CLT show fine corr",        panelClt2, color_report);
 			addButton("CLT apply fine corr",       panelClt2, color_process);
@@ -711,6 +712,7 @@ private Panel panel1,
 
 			addButton("LWIR_TEST",                  panelClt_GPU, color_conf_process);
 			addButton("LWIR_ACQUIRE",               panelClt_GPU, color_conf_process);
+			addButton("ERS reset",      panelClt2, color_stop);
 			addButton("IMU main",                   panelClt_GPU, color_conf_process);
 			addButton("ERS main",                   panelClt_GPU, color_process);
 			addButton("IMU aux",                    panelClt_GPU, color_conf_process_aux);
@@ -4559,6 +4561,21 @@ private Panel panel1,
         }
         QUAD_CLT.resetExtrinsicCorr(CLT_PARAMETERS);
         return;
+    } else if (label.equals("ERS reset")) {
+        if (QUAD_CLT == null){
+        	QUAD_CLT = new  QuadCLT (
+        			QuadCLT.PREFIX,
+        			PROPERTIES,
+        			EYESIS_CORRECTIONS,
+        			CORRECTION_PARAMETERS);
+        	if (DEBUG_LEVEL > 0){
+        		System.out.println("Created new QuadCLT instance, will need to read CLT kernels");
+        	}
+        }
+        QUAD_CLT.resetExtrinsicCorr(CLT_PARAMETERS);
+        return;
+        
+        
     } else if (label.equals("CLT show geometry")) {
         if (QUAD_CLT == null){
         	QUAD_CLT = new  QuadCLT (

src/main/java/com/elphel/imagej/gpu/GPUTileProcessor.java

@@ -1647,14 +1647,7 @@ public class GPUTileProcessor {
                 IJ.showMessage("Error", "No GPU kernel: GPU_CALCULATE_TILES_OFFSETS_kernel");
                 return;
             }
-    		if (gpu_debug_level > -1) {
-    			System.out.println("num_task_tiles="+num_task_tiles);
-    		}
-
-            // kernel parameters: pointer to pointers
-//            int [] GridFullWarps =    {(num_task_tiles + 2 * TILES_PER_BLOCK_GEOM - 1)/TILES_PER_BLOCK_GEOM, 1, 1}; // round up
-//            int [] ThreadsFullWarps = {num_cams, TILES_PER_BLOCK_GEOM, 1}; // 4,8,1
-            int [] GridFullWarps =    {1, 1, 1}; // round up
+            int [] GridFullWarps =    {1, 1, 1}; 
             int [] ThreadsFullWarps = {1, 1, 1}; // 4,8,1
             Pointer kernelParameters = Pointer.to(
             		Pointer.to(gpu_tasks),                   // struct tp_task     * gpu_tasks,
@@ -1671,7 +1664,7 @@ public class GPUTileProcessor {
         			kernelParameters, null);   // Kernel- and extra parameters
         	cuCtxSynchronize(); // remove later
     		if (gpu_debug_level > -1) {
-    			System.out.println("======execSetTilesOffsets()");
+    			System.out.println("======execSetTilesOffsets(), num_task_tiles="+num_task_tiles);
     		}
         }
 

src/main/java/com/elphel/imagej/tileprocessor/Corr2dLMA.java

@@ -1460,10 +1460,12 @@ public class Corr2dLMA {
 		return rslt;
 	}
 
-	public double [][] lmaDisparityStrength(
+	
+	public double [][] lmaDisparityStrength( // restored from git
 			double  lma_max_rel_rms,  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
 			double  lma_min_strength, // minimal composite strength (sqrt(average amp squared over absolute RMS)
 			double  lma_min_ac,       // minimal of A and C coefficients maximum (measures sharpest point/line)
+			double  lma_min_min_ac,   // minimal of A and C coefficients minimum (measures sharpest point)
 			double  lma_max_area,     // maximal half-area (if > 0.0)
 			double  lma_str_scale,    // convert lma-generated strength to match previous ones - scale
 			double  lma_str_offset    // convert lma-generated strength to match previous ones - add to result
@@ -1506,6 +1508,179 @@ public class Corr2dLMA {
 		return ds;
 	}
 
+
+	
+	public double [][] lmaDisparityStrength0(
+			double  lma_max_rel_rms,  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
+			double  lma_min_strength, // minimal composite strength (sqrt(average amp squared over absolute RMS)
+			double  lma_min_max_ac,   // minimal of A and C coefficients maximum (measures sharpest point/line)
+			double  lma_min_min_ac,   // minimal of A and C coefficients minimum (measures sharpest point)
+			double  lma_max_area,     // maximal half-area (if > 0.0)
+			double  lma_str_scale,    // convert lma-generated strength to match previous ones - scale
+			double  lma_str_offset    // convert lma-generated strength to match previous ones - add to result
+			){
+		double [][] ds =         new double[numTiles][2];
+		double []   rms =        getRmsTile();
+		double [][] maxmin_amp = getMaxMinAmpTile();
+		double [][] abc =        getABCTile();
+		for (int tile = 0; tile < numTiles; tile++) {
+			ds[tile][0] = Double.NaN;
+			if (Double.isNaN(maxmin_amp[tile][0])) {
+				continue;
+			}
+			double avg = 0.5*(maxmin_amp[tile][0]+maxmin_amp[tile][1]);
+			double rrms = rms[tile]/avg;
+			if (((lma_max_rel_rms > 0.0) && (rrms > lma_max_rel_rms)) ||
+					(Math.max(abc[tile][0], abc[tile][2]) < lma_min_max_ac)
+//					|| (Math.min(abc[tile][0], abc[tile][2]) < lma_min_min_ac)
+					) {
+				continue;
+			}
+			if (lma_max_area > 0) {
+				if ((abc[tile][0] > 0.0) && (abc[tile][2] > 0.0)) {
+//					double area_old = 1.0/abc[tile][0] + 1.0/abc[tile][2]; // area of a maximum
+					double area =  1.0/Math.sqrt(abc[tile][0] * abc[tile][2]);
+					if (area > lma_max_area) {
+						continue; // too wide maximum
+					}
+				} else {
+					continue; // not a maximum
+				}
+
+
+			}
+			double strength = Math.sqrt(avg/rrms);
+			double disparity = -all_pars[DISP_INDEX + tile*TILE_PARAMS];
+			if ((strength < lma_min_strength) || Double.isNaN(disparity)) {
+				continue;
+			}
+//			strength = Math.sqrt(strength * Math.sqrt(abc[tile][0] * abc[tile][2])); // / area ); // new strength
+			ds[tile][0] = disparity;
+			ds[tile][1] = (strength * lma_str_scale) + lma_str_offset;
+		}
+		return ds;
+	}
+	
+	public double [][] lmaDisparityStrengthLY(
+			double  lma_max_rel_rms,  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
+			double  lma_min_strength, // minimal composite strength (sqrt(average amp squared over absolute RMS)
+			double  lma_min_max_ac,   // minimal of A and C coefficients maximum (measures sharpest point/line)
+			double  lma_min_min_ac,   // minimal of A and C coefficients minimum (measures sharpest point)
+			double  lma_max_area,     // maximal half-area (if > 0.0)
+			double  lma_str_scale,    // convert lma-generated strength to match previous ones - scale
+			double  lma_str_offset    // convert lma-generated strength to match previous ones - add to result
+			){
+		double [][] ds =         new double[numTiles][2];
+		double []   rms =        getRmsTile();
+		double [][] maxmin_amp = getMaxMinAmpTile();
+		double [][] abc =        getABCTile();
+		for (int tile = 0; tile < numTiles; tile++) {
+			ds[tile][0] = Double.NaN;
+			if (Double.isNaN(maxmin_amp[tile][0])) {
+				continue;
+			}
+			double avg = 0.5*(maxmin_amp[tile][0]+maxmin_amp[tile][1]);
+			double rrms = rms[tile]/avg;
+			if (((lma_max_rel_rms > 0.0) && (rrms > lma_max_rel_rms)) ||
+					(Math.max(abc[tile][0], abc[tile][2]) < lma_min_max_ac) ||
+					(Math.min(abc[tile][0], abc[tile][2]) < lma_min_min_ac)) {
+				continue;
+			}
+			if (lma_max_area > 0) {
+				if ((abc[tile][0] > 0.0) && (abc[tile][2] > 0.0)) {
+//					double area_old = 1.0/abc[tile][0] + 1.0/abc[tile][2]; // area of a maximum
+					double area =  1.0/Math.sqrt(abc[tile][0] * abc[tile][2]);
+					if (area > lma_max_area) {
+						continue; // too wide maximum
+					}
+				} else {
+					continue; // not a maximum
+				}
+
+
+			}
+			double strength = Math.sqrt(avg/rrms);
+			double disparity = -all_pars[DISP_INDEX + tile*TILE_PARAMS];
+			if ((strength < lma_min_strength) || Double.isNaN(disparity)) {
+				continue;
+			}
+			strength = Math.sqrt(strength * Math.sqrt(abc[tile][0] * abc[tile][2])); // / area ); // new strength
+			ds[tile][0] = disparity;
+			ds[tile][1] = (strength * lma_str_scale) + lma_str_offset;
+		}
+		return ds;
+	}
+	
+	
+	
+	public double [][] lmaGetExtendedStats(
+			double  lma_max_rel_rms,  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
+			double  lma_min_strength, // minimal composite strength (sqrt(average amp squared over absolute RMS)
+			double  lma_min_max_ac,   // minimal of A and C coefficients maximum (measures sharpest point/line)
+			double  lma_min_min_ac,   // minimal of A and C coefficients minimum (measures sharpest point)
+			double  lma_max_area,     // maximal half-area (if > 0.0)
+			double  lma_str_scale,    // convert lma-generated strength to match previous ones - scale
+			double  lma_str_offset    // convert lma-generated strength to match previous ones - add to result
+			){
+//		double [][] ds =         new double[numTiles][2];
+		double [][] ext_stats =  new double[numTiles][11];
+		double []   rms =        getRmsTile();
+		double [][] maxmin_amp = getMaxMinAmpTile();
+		double [][] abc =        getABCTile();
+		for (int tile = 0; tile < numTiles; tile++) {
+			if (Double.isNaN(maxmin_amp[tile][0])) {
+				if (ext_stats[tile][10] == 0) ext_stats[tile][10] = 1;
+			}
+			ext_stats[tile][0] = maxmin_amp[tile][0];
+
+			double avg = 0.5*(maxmin_amp[tile][0]+maxmin_amp[tile][1]);
+			double rrms = rms[tile]/avg;
+			ext_stats[tile][1] = avg;
+			ext_stats[tile][2] = rrms; // -lma_max_rel_rms;
+//			ext_stats[tile][3] = Math.max(abc[tile][0], abc[tile][2])-lma_min_ac;
+			
+			if (((lma_max_rel_rms > 0.0) && (rrms > lma_max_rel_rms)) ||
+					(Math.max(abc[tile][0], abc[tile][2]) < lma_min_max_ac) ||
+					(Math.min(abc[tile][0], abc[tile][2]) < lma_min_min_ac)) {
+				if (ext_stats[tile][10] == 0) ext_stats[tile][10] = 2;
+//				continue;
+			}
+			double area =  Double.NaN;
+			double area_old = Double.NaN;
+			if (lma_max_area > 0) {
+				ext_stats[tile][5] = abc[tile][0];
+				ext_stats[tile][6] = abc[tile][2];
+
+				if ((abc[tile][0] > 0.0) && (abc[tile][2] > 0.0)) {
+					area_old = 1.0/abc[tile][0] + 1.0/abc[tile][2]; // area of a maximum
+					area =  1.0/Math.sqrt(abc[tile][0] * abc[tile][2]);
+					if (area > lma_max_area) {
+						if (ext_stats[tile][10] == 0) ext_stats[tile][10] = 3;
+//						continue; // too wide maximum
+					}
+				} else {
+					if (ext_stats[tile][10] == 0) ext_stats[tile][10] = 4;
+//					continue; // not a maximum
+				}
+				ext_stats[tile][7] = 1.0/area; // area-lma_max_area;
+				ext_stats[tile][4] = 1.0/area_old;
+			}
+			double strength = Math.sqrt(avg/rrms);
+			ext_stats[tile][9] = (strength * lma_str_scale) + lma_str_offset;
+			ext_stats[tile][3] = Math.sqrt(strength / area ); // new strength
+			double disparity = -all_pars[DISP_INDEX + tile*TILE_PARAMS];
+			if ((strength < lma_min_strength) || Double.isNaN(disparity)) {
+				if (ext_stats[tile][10] == 0) ext_stats[tile][10] = 5;
+				continue;
+			}
+			
+			ext_stats[tile][8] = -all_pars[DISP_INDEX + tile*TILE_PARAMS];
+			if (ext_stats[tile][10] == 0) ext_stats[tile][10] = 6;
+		}
+		return ext_stats;
+	}
+//			ext_stats[tile][3] = Math.max(abc[tile][0], abc[tile][2])-lma_min_ac;
+
 	public double [][] getDdNd(){ // this.all_pars should be current
 		double [][] ddnd = new double [NUM_CAMS][2];
 		for (int nc = 0; nc < NUM_CAMS; nc++) {

src/main/java/com/elphel/imagej/tileprocessor/Correlation2d.java

@@ -2449,7 +2449,8 @@ public class Correlation2d {
     				imgdtt_params.lma_max_rel_rms,  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
     				imgdtt_params.lma_min_strength, // minimal composite strength (sqrt(average amp squared over absolute RMS)
     				imgdtt_params.lma_min_ac,       // minimal of A and C coefficients maximum (measures sharpest point/line)
-    				imgdtt_params.lma_max_area,      //double  lma_max_area,     // maximal half-area (if > 0.0)
+    				imgdtt_params.lma_min_min_ac,   // minimal of A and C coefficients minimum (measures sharpest point)
+    				imgdtt_params.lma_max_area,     //double  lma_max_area,     // maximal half-area (if > 0.0)
     				imgdtt_params.lma_str_scale,    // convert lma-generated strength to match previous ones - scale
     				imgdtt_params.lma_str_offset    // convert lma-generated strength to match previous ones - add to result
     				);
@@ -2547,6 +2548,7 @@ public class Correlation2d {
     						imgdtt_params.lma_max_rel_rms,  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
     						imgdtt_params.lma_min_strength, // minimal composite strength (sqrt(average amp squared over absolute RMS)
     						imgdtt_params.lma_min_ac,       // minimal of A and C coefficients maximum (measures sharpest point/line)
+    	    				imgdtt_params.lma_min_min_ac,   // minimal of A and C coefficients minimum (measures sharpest point)
     	    				imgdtt_params.lma_max_area,      //double  lma_max_area,     // maximal half-area (if > 0.0)
     						imgdtt_params.lma_str_scale,    // convert lma-generated strength to match previous ones - scale
     						imgdtt_params.lma_str_offset    // convert lma-generated strength to match previous ones - add to result
@@ -2842,6 +2844,7 @@ public class Correlation2d {
     				imgdtt_params.lmas_max_rel_rms,  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
     				imgdtt_params.lmas_min_strength, // minimal composite strength (sqrt(average amp squared over absolute RMS)
     				imgdtt_params.lmas_min_ac,       // minimal of A and C coefficients maximum (measures sharpest point/line)
+    				imgdtt_params.lmas_min_min_ac,   // minimal of A and C coefficients minimum (measures sharpest point)
     				imgdtt_params.lmas_max_area,     //double  lma_max_area,     // maximal half-area (if > 0.0)
     				imgdtt_params.lma_str_scale,     // convert lma-generated strength to match previous ones - scale
     				imgdtt_params.lma_str_offset     // convert lma-generated strength to match previous ones - add to result

src/main/java/com/elphel/imagej/tileprocessor/GeometryCorrection.java

@@ -552,6 +552,11 @@ public class GeometryCorrection {
 		extrinsic_corr = new CorrVector();
 	}
 
+	public void resetCorrVectorERS(){// not used in lwir
+		extrinsic_corr.setIMU(new double[6]);
+	}
+
+	
 	public boolean [] getParMask( // for compatibility with old
 //			boolean disparity_only,
 //			boolean use_disparity,

src/main/java/com/elphel/imagej/tileprocessor/ImageDttCPU.java

@@ -2151,6 +2151,7 @@ public class ImageDttCPU {
 														imgdtt_params.lmas_max_rel_rms,  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
 														imgdtt_params.lmas_min_strength, // minimal composite strength (sqrt(average amp squared over absolute RMS)
 														imgdtt_params.lmas_min_ac,       // minimal of A and C coefficients maximum (measures sharpest point/line)
+														imgdtt_params.lmas_min_min_ac,   // minimal of A and C coefficients minimum (measures sharpest point)
 														imgdtt_params.lmas_max_area,     // double  lma_max_area,     // maximal half-area (if > 0.0)
 														imgdtt_params.lma_str_scale,     // convert lma-generated strength to match previous ones - scale
 														imgdtt_params.lma_str_offset     // convert lma-generated strength to match previous ones - add to result
@@ -2202,6 +2203,7 @@ public class ImageDttCPU {
 					    				imgdtt_params.lma_max_rel_rms,  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
 					    				imgdtt_params.lma_min_strength, // minimal composite strength (sqrt(average amp squared over absolute RMS)
 					    				imgdtt_params.lma_min_ac,       // minimal of A and C coefficients maximum (measures sharpest point/line)
+										imgdtt_params.lma_min_min_ac,   // minimal of A and C coefficients minimum (measures sharpest point)
 					    				imgdtt_params.lma_max_area,      //double  lma_max_area,     // maximal half-area (if > 0.0)
 					    				1.0, // imgdtt_params.lma_str_scale,    // convert lma-generated strength to match previous ones - scale
 					    				0.0); // imgdtt_params.lma_str_offset);  // convert lma-generated strength to match previous ones - add to result
@@ -2269,6 +2271,7 @@ public class ImageDttCPU {
 											imgdtt_params.lma_max_rel_rms,  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
 											imgdtt_params.lma_min_strength, // minimal composite strength (sqrt(average amp squared over absolute RMS)
 											imgdtt_params.lma_min_ac,       // minimal of A and C coefficients maximum (measures sharpest point/line)
+											imgdtt_params.lma_min_min_ac,   // minimal of A and C coefficients minimum (measures sharpest point)
 											imgdtt_params.lma_max_area,      //double  lma_max_area,     // maximal half-area (if > 0.0)
 											imgdtt_params.lma_str_scale,    // convert lma-generated strength to match previous ones - scale
 											imgdtt_params.lma_str_offset);  // convert lma-generated strength to match previous ones - add to result
@@ -3343,6 +3346,7 @@ public class ImageDttCPU {
 							    				imgdtt_params.lmas_max_rel_rms,  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
 							    				imgdtt_params.lmas_min_strength, // minimal composite strength (sqrt(average amp squared over absolute RMS)
 							    				imgdtt_params.lmas_min_ac,       // minimal of A and C coefficients maximum (measures sharpest point/line)
+												imgdtt_params.lmas_min_min_ac,   // minimal of A and C coefficients minimum (measures sharpest point)
 							    				imgdtt_params.lmas_max_area,      //double  lma_max_area,     // maximal half-area (if > 0.0)
 							    				imgdtt_params.lma_str_scale,    // convert lma-generated strength to match previous ones - scale
 							    				imgdtt_params.lma_str_offset    // convert lma-generated strength to match previous ones - add to result

src/main/java/com/elphel/imagej/tileprocessor/ImageDttParameters.java

@@ -128,6 +128,7 @@ public class ImageDttParameters {
 	public double  lmas_max_rel_rms =        0.3;   // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
 	public double  lmas_min_strength =       0.7;   // minimal composite strength (sqrt(average amp squared over absolute RMS)
 	public double  lmas_min_ac =             0.02;  // minimal of a and C coefficients maximum (measures sharpest point/line)
+	public double  lmas_min_min_ac =         0.007; // minimal of a and C coefficients minimum (measures sharpest point)
 	public double  lmas_max_area =           0.0;  // maximal half-area (if > 0.0)
 
 	public boolean lma_gaussian =           false; // model correlation maximum as a Gaussian (false - as a parabola)
@@ -163,10 +164,11 @@ public class ImageDttParameters {
 	public double  lma_rms_diff =           0.003; //
 	public int     lma_num_iter =          10;     //
 	// Filtering and strength calculation
-	public double  lma_max_rel_rms =        0.2;  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
-	public double  lma_min_strength =       1.0;  // minimal composite strength (sqrt(average amp squared over absolute RMS)
+	public double  lma_max_rel_rms =        0.25;  // maximal relative (to average max/min amplitude LMA RMS) // May be up to 0.3)
+	public double  lma_min_strength =       1.0;   // minimal composite strength (sqrt(average amp squared over absolute RMS)
 	public double  lma_min_ac =             0.05;  // minimal of a and C coefficients maximum (measures sharpest point/line)
-	public double  lma_max_area =           45.0;  // maximal half-area (if > 0.0)
+	public double  lma_min_min_ac =         0.015; // minimal of a and C coefficients minimum (measures sharpest point)
+	public double  lma_max_area =           30.0;  //45.0;  // maximal half-area (if > 0.0)
 
 	public double  lma_str_scale =          0.2;   // convert lma-generated strength to match previous ones - scale
 	public double  lma_str_offset =         0.05;  // convert lma-generated strength to match previous ones - add to result
@@ -388,6 +390,8 @@ public class ImageDttParameters {
 		            "Discard tile if composite strength (average amplitude over SQRT of RMS) is below");
 		    gd.addNumericField("Minimal max (A,C)",                                               this.lmas_min_ac,  6, 8, "",
 		            "Minimal value of max (A,C) coefficients to keep the tile (measures sharpest point/line correlation maximum)");
+			gd.addNumericField("Minimal min (A,C)",                                               this.lmas_min_min_ac,  6, 8, "",
+					"Minimal value of min (A,C) coefficients to keep the tile (measures sharpest point correlation maximum)");
 		    gd.addNumericField("Maximal area",                                                    this.lmas_max_area,  6, 8, "sq.pix",
 		            "Maximal product of maximum half-width by half-height, ignore check if <=0");
 
@@ -453,6 +457,8 @@ public class ImageDttParameters {
 					"Discard tile if composite strength (average amplitude over SQRT of RMS) is below");
 			gd.addNumericField("Minimal max (A,C)",                                               this.lma_min_ac,  6, 8, "",
 					"Minimal value of max (A,C) coefficients to keep the tile (measures sharpest point/line correlation maximum)");
+			gd.addNumericField("Minimal min (A,C)",                                               this.lma_min_min_ac,  6, 8, "",
+					"Minimal value of min (A,C) coefficients to keep the tile (measures sharpest point correlation maximum)");
 			gd.addNumericField("Maximal area",                                                    this.lma_max_area,  6, 8, "sq.pix",
 					"Maximal product of maximum half-width by half-height, ignore check if <=0");
 
@@ -605,6 +611,7 @@ public class ImageDttParameters {
 			this.lmas_max_rel_rms =      gd.getNextNumber();
 			this.lmas_min_strength =     gd.getNextNumber();
 			this.lmas_min_ac =           gd.getNextNumber();
+			this.lmas_min_min_ac =           gd.getNextNumber();
 			this.lmas_max_area =         gd.getNextNumber();
 
 			this.lma_gaussian=           gd.getNextBoolean();
@@ -638,6 +645,7 @@ public class ImageDttParameters {
 			this.lma_max_rel_rms =       gd.getNextNumber();
 			this.lma_min_strength =      gd.getNextNumber();
 			this.lma_min_ac =            gd.getNextNumber();
+			this.lma_min_min_ac =        gd.getNextNumber();
 			this.lma_max_area =          gd.getNextNumber();
 
 			this.lma_str_scale =         gd.getNextNumber();
@@ -754,6 +762,7 @@ public class ImageDttParameters {
 		properties.setProperty(prefix+"lmas_max_rel_rms",     this.lmas_max_rel_rms +"");
 		properties.setProperty(prefix+"lmas_min_strength",    this.lmas_min_strength +"");
 		properties.setProperty(prefix+"lmas_min_ac",          this.lmas_min_ac +"");
+		properties.setProperty(prefix+"lmas_min_min_ac",      this.lmas_min_min_ac +"");
 		properties.setProperty(prefix+"lmas_max_area",        this.lmas_max_area +"");
 
 		properties.setProperty(prefix+"lma_gaussian",         this.lma_gaussian +"");
@@ -788,6 +797,7 @@ public class ImageDttParameters {
 		properties.setProperty(prefix+"lma_max_rel_rms",      this.lma_max_rel_rms +"");
 		properties.setProperty(prefix+"lma_min_strength",     this.lma_min_strength +"");
 		properties.setProperty(prefix+"lma_min_ac",           this.lma_min_ac +"");
+		properties.setProperty(prefix+"lma_min_min_ac",       this.lma_min_min_ac +"");
 		properties.setProperty(prefix+"lma_max_area",         this.lma_max_area +"");
 		properties.setProperty(prefix+"lma_str_scale",        this.lma_str_scale +"");
 		properties.setProperty(prefix+"lma_str_offset",       this.lma_str_offset +"");
@@ -909,6 +919,7 @@ public class ImageDttParameters {
 		if (properties.getProperty(prefix+"lmas_max_rel_rms")!=null)     this.lmas_max_rel_rms=Double.parseDouble(properties.getProperty(prefix+"lmas_max_rel_rms"));
 		if (properties.getProperty(prefix+"lmas_min_strength")!=null)    this.lmas_min_strength=Double.parseDouble(properties.getProperty(prefix+"lmas_min_strength"));
 		if (properties.getProperty(prefix+"lmas_min_ac")!=null)          this.lmas_min_ac=Double.parseDouble(properties.getProperty(prefix+"lmas_min_ac"));
+		if (properties.getProperty(prefix+"lmas_min_min_ac")!=null)      this.lmas_min_min_ac=Double.parseDouble(properties.getProperty(prefix+"lmas_min_min_ac"));
 		if (properties.getProperty(prefix+"lmas_max_area")!=null)        this.lmas_max_area=Double.parseDouble(properties.getProperty(prefix+"lmas_max_area"));
 
 		if (properties.getProperty(prefix+"lma_gaussian")!=null)         this.lma_gaussian=Boolean.parseBoolean(properties.getProperty(prefix+"lma_gaussian"));
@@ -941,6 +952,7 @@ public class ImageDttParameters {
 		if (properties.getProperty(prefix+"lma_max_rel_rms")!=null)      this.lma_max_rel_rms=Double.parseDouble(properties.getProperty(prefix+"lma_max_rel_rms"));
 		if (properties.getProperty(prefix+"lma_min_strength")!=null)     this.lma_min_strength=Double.parseDouble(properties.getProperty(prefix+"lma_min_strength"));
 		if (properties.getProperty(prefix+"lma_min_ac")!=null)           this.lma_min_ac=Double.parseDouble(properties.getProperty(prefix+"lma_min_ac"));
+		if (properties.getProperty(prefix+"lma_min_min_ac")!=null)       this.lma_min_min_ac=Double.parseDouble(properties.getProperty(prefix+"lma_min_min_ac"));
 		if (properties.getProperty(prefix+"lma_max_area")!=null)         this.lma_max_area=Double.parseDouble(properties.getProperty(prefix+"lma_max_area"));
 		if (properties.getProperty(prefix+"lma_str_scale")!=null)        this.lma_str_scale=Double.parseDouble(properties.getProperty(prefix+"lma_str_scale"));
 		if (properties.getProperty(prefix+"lma_str_offset")!=null)       this.lma_str_offset=Double.parseDouble(properties.getProperty(prefix+"lma_str_offset"));
@@ -1059,6 +1071,7 @@ public class ImageDttParameters {
 		idp.lmas_max_rel_rms=        this.lmas_max_rel_rms;
 		idp.lmas_min_strength=       this.lmas_min_strength;
 		idp.lmas_min_ac=             this.lmas_min_ac;
+		idp.lmas_min_min_ac=         this.lmas_min_min_ac;
 		idp.lmas_max_area=           this.lmas_max_area;
 
 		idp.lma_gaussian =           this.lma_gaussian;
@@ -1091,6 +1104,7 @@ public class ImageDttParameters {
 		idp.lma_max_rel_rms=         this.lma_max_rel_rms;
 		idp.lma_min_strength=        this.lma_min_strength;
 		idp.lma_min_ac=              this.lma_min_ac;
+		idp.lma_min_min_ac=          this.lma_min_min_ac;
 		idp.lma_max_area=            this.lma_max_area;
 		idp.lma_str_scale=           this.lma_str_scale;
 		idp.lma_str_offset=          this.lma_str_offset;