tweaking confidence, LMA,

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

@@ -2603,7 +2603,8 @@ public class Corr2dLMA {
 			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  lma_str_offset,   // convert lma-generated strength to match previous ones - add to result
+			double  lma_ac_offset     // add to a,c coefficients for near-lines where A,C could become negative because of window 
 			){
 		return lmaDisparityStrengths(
 				lmas_min_amp,     // double  lmas_min_amp_fg,  // minimal ratio of minimal pair correlation amplitude to maximal pair correlation amplitude
@@ -2615,7 +2616,8 @@ public class Corr2dLMA {
 				lma_max_area,     // maximal half-area (if > 0.0)
 				lma_str_scale,    // convert lma-generated strength to match previous ones - scale
 				lma_str_offset,    // convert lma-generated strength to match previous ones - add to result
-				false // boolean dbg_mode
+				false,             // boolean dbg_mode
+				lma_ac_offset     // add to a,c coefficients for near-lines where A,C could become negative because of window 
 				)[0];
 	}
 
@@ -2625,19 +2627,22 @@ public class Corr2dLMA {
 			double  lmas_min_amp_bg,  // Same for bg correlation max (only used for multi-max)
 			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_min_max_ac,   // maximal of A and C coefficients minimum (measures sharpest point/line)
+			double  lma_min_min_ac,   // minimal of A and C coefficients minimum 
 			double  lma_max_area,     // maximal half-area (if > 0.0) // 20
 			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
-			boolean dbg_mode
+			double  lma_str_offset,   // convert lma-generated strength to match previous ones - add to result
+			boolean dbg_mode,
+			double  lma_ac_offset     // add to a,c coefficients for near-lines where A,C could become negative because of window 
 			){
-		double [][][] ds =         new double[numMax][numTiles][dbg_mode? 6 : 3];
+		double [][][] ds =         new double[numMax][numTiles][dbg_mode? 13 : 3];
 		double []   rms =        getRmsTile();
 		for (int nmax = 0; nmax < numMax; nmax++) {
 			double [][] maxmin_amp = getMaxMinAmpTile(nmax); // nmax
 			double [][] abc =        getABCTile(nmax);       // nmax
 			for (int tile = 0; tile < numTiles; tile++) {
+				abc[tile][0] += lma_ac_offset;
+				abc[tile][2] += lma_ac_offset;
 				int offs = (tile * numMax + nmax) * tile_params;
 				ds[nmax][tile][0] = Double.NaN;
 				if (Double.isNaN(maxmin_amp[tile][0])) {
@@ -2666,7 +2671,7 @@ public class Corr2dLMA {
 				if ((lma_max_rel_rms > 0.00) && (rrms > lma_max_rel_rms)) {
 					continue;
 				}
-				if (Math.max(abc[tile][0], abc[tile][2]) < lma_min_max_ac) {
+				if (Math.max(abc[tile][0], abc[tile][2]) < (lma_min_max_ac + lma_ac_offset)) { // so old lma_min_max_ac will stay
 					continue;
 				}
 				if ((lma_min_min_ac > 0.0) && ((abc[tile][0] < lma_min_min_ac) || (abc[tile][2] < lma_min_min_ac))){
@@ -2691,14 +2696,22 @@ public class Corr2dLMA {
 				if (ac < 0) {
 					continue;
 				}
-				strength = Math.sqrt(strength * Math.sqrt(ac)); // / area ); // new strength
+				double strength1 = Math.sqrt(strength * Math.sqrt(ac)); // / area ); // new strength
 				ds[nmax][tile][0] = disparity;
-				ds[nmax][tile][1] = (strength * lma_str_scale) + lma_str_offset;
-				ds[nmax][tile][2] = strength; // as is
+				ds[nmax][tile][1] = (strength1 * lma_str_scale) + lma_str_offset;
+				ds[nmax][tile][2] = strength1; // as is
 				if (ds[nmax][tile].length > 3) {
 					ds[nmax][tile][3] = area;
 					ds[nmax][tile][4] = ac;
 					ds[nmax][tile][5] = Math.min(abc[tile][0],abc[tile][2]);
+					ds[nmax][tile][6] = Math.max(abc[tile][0],abc[tile][2]);
+					ds[nmax][tile][7] = abc[tile][0];
+					ds[nmax][tile][8] = abc[tile][2];
+					ds[nmax][tile][9] = abc[tile][1];
+					ds[nmax][tile][10] = strength;
+					ds[nmax][tile][11] = rrms;
+					ds[nmax][tile][12] = rms[tile];
+					
 				}
 			}
 		}
@@ -3053,7 +3066,7 @@ public class Corr2dLMA {
 			}
 		}
 		if (debug_level > 0) {
-			System.out.println("LMA: full RMS="+last_rms[0]+" ("+initial_rms[0]+"), pure RMS="+last_rms[1]+" ("+initial_rms[1]+") + lambda="+lambda);
+			System.out.println("Corr2dLMA:LMA: full RMS="+last_rms[0]+" ("+initial_rms[0]+"), pure RMS="+last_rms[1]+" ("+initial_rms[1]+") + lambda="+lambda);
 		}
 
 		return rslt[0];

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

@@ -2860,8 +2860,12 @@ public class ImageDtt extends ImageDttCPU {
 		// keep for now for mono, find out  what do they mean for macro mode
 		
 		final int corr_size = transform_size * 2 - 1;
+		final String[] debug_lma_titles_nobi = {"disp_samples","num_cnvx_samples","num_comb_samples", "num_lmas","num_iters","rms"};
+		final String[] debug_lma_titles_bi  = {"disparity","strength_mod","strength", "area","ac","min(a,c)","max(a,c)","a","c","b","str1","rrms","rms"};
+		final String[] debug_lma_titles= imgdtt_params.bimax_dual_LMA? debug_lma_titles_bi:debug_lma_titles_nobi;
+//		final double [][]         debug_lma = imgdtt_params.lmamask_dbg? (new double [6][tilesX*tilesY]):null;
+		final double [][]         debug_lma = imgdtt_params.lmamask_dbg? (new double [debug_lma_titles.length][tilesX*tilesY]):null;
 
-		final double [][]         debug_lma = imgdtt_params.lmamask_dbg? (new double [6][tilesX*tilesY]):null;
 		if (debug_lma != null) {
 			for (int i = 0; i < debug_lma.length; i++) {
 				Arrays.fill(debug_lma[i], Double.NaN);
@@ -3026,7 +3030,8 @@ public class ImageDtt extends ImageDttCPU {
 							}
 							nTile = tileY * tilesX + tileX;
 							if (tp_tasks[iTile].getTask() == 0) continue; // nothing to do for this tile
-							boolean debugTile0 =(tileX == debug_tileX) && (tileY == debug_tileY) && (globalDebugLevel > 1); // 0);
+							boolean debugTile0 =(tileX == debug_tileX) && (tileY == debug_tileY) && (globalDebugLevel > 0); // 1);
+							debugTile0 |=(tileX == debug_tileX-1) && (tileY == debug_tileY) && (globalDebugLevel > 0); // 1);
 							boolean debugTile1 =(tileX == debug_tileX) && (tileY == debug_tileY) && (globalDebugLevel > -10);
 							if (debugTile0) {
 								System.out.println("clt_process_tl_correlations(): tileX="+tileX+", tileY="+tileY+", iTile="+iTile+", nTile="+nTile);
@@ -3161,7 +3166,9 @@ public class ImageDtt extends ImageDttCPU {
 									double [][] maxes = correlation2d.getDoublePoly(
 											disparity_scale, // double    disparity_scale,
 											((corr_dia_tile != null) ? corr_dia_tile : corr_combo_tile), // double [] combo_corrs,
-											imgdtt_params.mcorr_dual_fract); //double    min_fraction
+											imgdtt_params.mcorr_dual_fract,   //double    min_fraction
+											imgdtt_params.mcorr_dual_min_max,  // double    min_max, // =      0.2;  // Minimal absolute strength of the strongest in a dual-max to consider second one
+											imgdtt_params.mcorr_dual_min_min); // double    min_min);  // =      0.08; // Minimal absolute strength of a weakest in a dual-max to consider second one
 									if ((disparity_map != null) && (disparity_map[DISPARITY_VARIATIONS_INDEX] != null)) {
 										disparity_map[DISPARITY_VARIATIONS_INDEX    ][nTile] = maxes.length;
 									}
@@ -3234,12 +3241,13 @@ public class ImageDtt extends ImageDttCPU {
 															imgdtt_params.lmas_min_amp_bg,   //  minimal ratio of minimal pair correlation amplitude to maximal pair correlation amplitude
 															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_max_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
-															dbg_dispStrs // false // boolean dbg_mode
+															dbg_dispStrs, // false // boolean dbg_mode
+										    				imgdtt_params.lma_ac_offset     // Add to A, C coefficients for near-lines where A,C could become negative because of window
 															);
 													disp_str_lma = new double [dispStrs.length][]; // order matching input ones
 													for (int nmax = 0;nmax < dispStrs.length; nmax++) {
@@ -3360,11 +3368,12 @@ public class ImageDtt extends ImageDttCPU {
 											imgdtt_params.lmas_min_amp,      //  minimal ratio of minimal pair correlation amplitude to maximal pair correlation amplitude
 											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_max_ac,       // maximal of A and C coefficients minimum (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
+											imgdtt_params.lma_str_offset,    // convert lma-generated strength to match previous ones - add to result
+						    				imgdtt_params.lma_ac_offset     // Add to A, C coefficients for near-lines where A,C could become negative because of window
 											);
 									if (ds != null) { // always true
 //										if (disparity_map!=null) {
@@ -3425,7 +3434,7 @@ public class ImageDtt extends ImageDttCPU {
 							tilesY,
 							true,
 							"lma_debug_dual_LMA",
-							new String[] {"disparity","strength_mod","strength", "area","ac","min(a,c)"}
+							debug_lma_titles
 							);
 				} else {
 					(new ShowDoubleFloatArrays()).showArrays(
@@ -3434,7 +3443,7 @@ public class ImageDtt extends ImageDttCPU {
 							tilesY,
 							true,
 							"lma_debug",
-							new String[] {"disp_samples","num_cnvx_samples","num_comb_samples", "num_lmas","num_iters","rms"}
+							debug_lma_titles
 							);
 				}
 
@@ -4815,11 +4824,12 @@ public class ImageDtt extends ImageDttCPU {
 				    				imgdtt_params.lmas_min_amp,      //  minimal ratio of minimal pair correlation amplitude to maximal pair correlation amplitude
 									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_max_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
+									imgdtt_params.lma_str_offset,     // convert lma-generated strength to match previous ones - add to result
+				    				imgdtt_params.lma_ac_offset     // Add to A, C coefficients for near-lines where A,C could become negative because of window
 									)[0];
 							if (tile_lma_debug_level > 0) {
 								double [][] ds_dbg = {disp_str};
@@ -5112,11 +5122,12 @@ public class ImageDtt extends ImageDttCPU {
 				    				imgdtt_params.lmas_min_amp,      //  minimal ratio of minimal pair correlation amplitude to maximal pair correlation amplitude
 									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_max_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
+									imgdtt_params.lma_str_offset,     // convert lma-generated strength to match previous ones - add to result
+				    				imgdtt_params.lma_ac_offset     // Add to A, C coefficients for near-lines where A,C could become negative because of window
 									)[0];
 							if (tile_lma_debug_level > 0) {
 								double [][] ds_dbg = {disp_str};

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

@@ -2237,11 +2237,12 @@ public class ImageDttCPU {
 									    				imgdtt_params.lmas_min_amp,      //  minimal ratio of minimal pair correlation amplitude to maximal pair correlation amplitude
 														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_max_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
+														imgdtt_params.lma_str_offset,     // convert lma-generated strength to match previous ones - add to result
+									    				imgdtt_params.lma_ac_offset     // Add to A, C coefficients for near-lines where A,C could become negative because of window
 														)[0];
 													if ((disp_str[cTile]!=null) && Double.isNaN(disp_str[cTile][1])) {
 														System.out.println();
@@ -2424,7 +2425,8 @@ public class ImageDttCPU {
 										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
+										0.0,     // convert lma-generated strength to match previous ones - add to result
+					    				imgdtt_params.lma_ac_offset);     // Add to A, C coefficients for near-lines where A,C could become negative because of window
 //								double [][] extra_stats = lma2.getTileStats();
 								
 								if (debugCluster) {
@@ -3157,11 +3159,12 @@ public class ImageDttCPU {
 						    				imgdtt_params.lmas_min_amp,      //  minimal ratio of minimal pair correlation amplitude to maximal pair correlation amplitude
 											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_max_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
+											imgdtt_params.lma_str_offset,     // convert lma-generated strength to match previous ones - add to result
+						    				imgdtt_params.lma_ac_offset     // Add to A, C coefficients for near-lines where A,C could become negative because of window
 											);
 									if (ds != null) { // always true
 										disparity_map[DISPARITY_INDEX_POLY][tIndex] =   ds[0][0];
@@ -4262,11 +4265,12 @@ public class ImageDttCPU {
 										imgdtt_params.lmas_min_amp,      //  minimal ratio of minimal pair correlation amplitude to maximal pair correlation amplitude
 										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_max_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
+										imgdtt_params.lma_str_offset,     // convert lma-generated strength to match previous ones - add to result
+					    				imgdtt_params.lma_ac_offset     // Add to A, C coefficients for near-lines where A,C could become negative because of window
 										);
 								if (ds != null) { // always true
 									disp_lma[nTile] =   ds[0][0];
@@ -5182,11 +5186,12 @@ public class ImageDttCPU {
 										imgdtt_params.lmas_min_amp,      //  minimal ratio of minimal pair correlation amplitude to maximal pair correlation amplitude
 										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_max_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
+										imgdtt_params.lma_str_offset,     // convert lma-generated strength to match previous ones - add to result
+					    				imgdtt_params.lma_ac_offset     // Add to A, C coefficients for near-lines where A,C could become negative because of window
 										);
 								if (ds != null) { // always true
 									disparity_map[DISPARITY_INDEX_POLY][nTileC] =   ds[0][0];
@@ -15608,11 +15613,12 @@ public class ImageDttCPU {
 							    				imgdtt_params.lmas_min_amp,      //  minimal ratio of minimal pair correlation amplitude to maximal pair correlation amplitude
 							    				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_max_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
+												imgdtt_params.lma_str_offset,     // convert lma-generated strength to match previous ones - add to result
+							    				imgdtt_params.lma_ac_offset     // Add to A, C coefficients for near-lines where A,C could become negative because of window
 							    				);
 							    		lma2.printStats(ds,1);
 							    	}
@@ -16618,11 +16624,12 @@ public class ImageDttCPU {
 										imgdtt_params.lmas_min_amp,      //  minimal ratio of minimal pair correlation amplitude to maximal pair correlation amplitude
 										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_max_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
+										imgdtt_params.lma_str_offset,     // convert lma-generated strength to match previous ones - add to result
+					    				imgdtt_params.lma_ac_offset     // Add to A, C coefficients for near-lines where A,C could become negative because of window
 										);
 								if (ds != null) { // always true
 									if (disparity_map!=null) {

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

@@ -122,6 +122,120 @@ public class QuadCLT extends QuadCLTCPU {
 		}
 	}
 	
+	/**
+	 * Remove weak non-LMA tiles if they do not have any LMA or strong neighbors and
+	 * too few weak neighbors. Single strong neighbor within range is enough, strong/LMA
+	 * that are not within range are still counted towards total "good" neighbors. For
+	 * example, weak tiles of the sky just above strong sky-line will survive if the
+	 * number of similar weak neighbor tiles representing clouds plus number of sky-line
+	 * tiles is sufficient. Range may be somewhat wider than that for stronger tiles.
+	 * Strong neibs with lower disparity count as weak ones (towards number of good neibs).
+	 * There should be at least one "near".
+	 *  
+	 * @param dls {disparity, lma_disparity, strength} - not to be modified
+	 * @param strong strength to be considered non weak 
+	 * @param weak   strength to be considered weak, below - just delete (may be 0 if not used) 
+	 * @param min_neibs minimal number of neighbors (of 8) to survive
+	 * @param tolerance_absolute - absolute tolerance
+	 * @param tolerance_relative
+	 * @param width
+	 * @param max_iter
+	 * @param threadsMax
+	 * @param debug_level
+	 * @return updated disparity with some tiles replaced with Double.NaN
+	 */
+	
+	public static double [] removeFewWeak(
+			final double [][] dls,
+			final double      strong,
+			final double      weak,
+			final int         min_neibs, 
+			final double      tolerance_absolute,
+			final double      tolerance_relative,
+			final int         width,
+			final int         max_iter,
+			final int         threadsMax,
+			final int         debug_level)
+	{
+		final int tiles = dls[0].length;
+		final double [] disparity =     dls[0].clone();
+		final double [] disparity_out = dls[0].clone();
+		final double [] disparity_lma = dls[1].clone();
+		final double [] strength =      dls[2]; // will not be updated
+		final TileNeibs tn =  new TileNeibs(width, tiles/width);
+		final Thread[] threads = ImageDtt.newThreadArray(threadsMax);
+		final AtomicInteger ai = new AtomicInteger(0);
+		final AtomicInteger anum_updated = new AtomicInteger(0);
+		final int dbg_tile = 2512;
+		for (int iter = 0; iter < max_iter; iter++) {
+			ai.set(0);
+			anum_updated.set(0);
+			for (int ithread = 0; ithread < threads.length; ithread++) {
+				threads[ithread] = new Thread() {
+					public void run() {
+						for (int nTile = ai.getAndIncrement(); nTile < tiles; nTile = ai.getAndIncrement()) {
+							if ((debug_level >0) && (nTile == dbg_tile)) {
+								System.out.println("removeFewWeak():removeDisparityOutliers() nTile="+nTile);
+							}
+							if (    !Double.isNaN(disparity[nTile]) &&
+									Double.isNaN(disparity_lma[nTile]) && // is not lma 
+									(strength[nTile] < strong)) {         // weak
+								if (strength[nTile] < weak) {
+									disparity_out[nTile] = Double.NaN;
+									anum_updated.getAndIncrement();
+									continue;
+								}
+								double tolerance = tolerance_absolute +  ((disparity[nTile]>0)? disparity[nTile]*tolerance_relative:0);
+								double lim_max = disparity[nTile] + tolerance; 
+								double lim_min = disparity[nTile] - tolerance;
+								int num_goog_neibs = 0; // strong or close
+								int num_near = 0;
+								boolean keep = false;
+								for (int dir = 0; dir < 8; dir++) {
+									int ineib = tn.getNeibIndex(nTile, dir);
+									if ((ineib >= 0) && !Double.isNaN(disparity[ineib])) {
+										boolean near = (disparity[ineib] >= lim_min) && (disparity[ineib] <= lim_max);
+										boolean is_strong = !Double.isNaN(disparity_lma[ineib]) ||
+												(strength[ineib] >= strong);
+										// Strong and near only counts for strong in FG (nearer), far ones same as weak
+										if (near && is_strong && (disparity[ineib] >= disparity[nTile])) {
+											keep = true;
+											break;
+										}
+										if (near || is_strong) {
+											num_goog_neibs++;
+											if (near) num_near++;
+											if ((num_goog_neibs >= min_neibs) && (num_near > 0)) {
+												keep = true;
+												break;
+											}
+										}
+									}
+								}
+								if (!keep) {
+									disparity_out[nTile] = Double.NaN;
+									anum_updated.getAndIncrement();
+								}
+							}
+						}
+					}
+				};
+			}		      
+			ImageDtt.startAndJoin(threads);
+			if (anum_updated.get() ==0) {
+				break;
+			}
+			System.arraycopy(disparity_out,0,disparity,0,tiles);
+		}
+		return disparity_out;
+	}
+	
+	
+	
+	
+	
+	
+	
 
 	public static double [] removeDisparityLMAOutliers( // just LMA FG
 			final boolean     non_lma,
@@ -144,7 +258,7 @@ public class QuadCLT extends QuadCLTCPU {
 		final Thread[] threads = ImageDtt.newThreadArray(threadsMax);
 		final AtomicInteger ai = new AtomicInteger(0);
 		final AtomicInteger anum_updated = new AtomicInteger(0);
-		final int dbg_tile = 989;
+		final int dbg_tile = 2997;
 		for (int iter = 0; iter < max_iter; iter++) {
 			ai.set(0);
 			anum_updated.set(0);
@@ -157,7 +271,7 @@ public class QuadCLT extends QuadCLTCPU {
 								System.out.println("removeDisparityOutliers() nTile="+nTile);
 							}
 							if (    !Double.isNaN(disparity[nTile]) &&
-									(!Double.isNaN(disparity_lma[nTile]) ^ non_lma) &&
+									(!Double.isNaN(disparity_lma[nTile]) ^ non_lma) && // is_lma 
 									(strength[nTile] < max_strength)) { // weak LMA
 								Arrays.fill(neibs, Double.NaN);
 								for (int dir = 0; dir < 8; dir++) {
@@ -395,12 +509,13 @@ public class QuadCLT extends QuadCLTCPU {
 		final Thread[] threads = ImageDtt.newThreadArray(threadsMax);
 		final AtomicInteger ai = new AtomicInteger(0);
 		final AtomicInteger anum_gaps = new AtomicInteger(0);
+		final int dbg_tile = 2191;
 		for (int ithread = 0; ithread < threads.length; ithread++) {
 			threads[ithread] = new Thread() {
 				public void run() {
 					for (int nTile = ai.getAndIncrement(); nTile < tiles; nTile = ai.getAndIncrement()) {
 						if (ds[0][nTile] < min_disparity) {
-							ds[0][nTile] = min_disparity;
+							ds[0][nTile] = Double.NaN; // min_disparity;
 						}
 						if (Double.isNaN(ds[0][nTile]) || (ds[1][nTile] <= 0)) {
 							ds[0][nTile] = Double.NaN;
@@ -432,14 +547,23 @@ public class QuadCLT extends QuadCLTCPU {
 						double [] neibs_sorted = new double[8];
 						for (int indx = ai.getAndIncrement(); indx < num_gaps; indx = ai.getAndIncrement()) {
 							int nTile = tile_indices[indx];
+							if ((debug_level >0) && (nTile == dbg_tile)) {
+								System.out.println("fillDisparityStrength() nTile="+nTile);
+							}
+							
 							if (!fill_all[0] && !Double.isNaN(ds[0][nTile])) {
 								continue; // fill only new
 							}
 							Arrays.fill(neibs, Double.NaN);
+							double swd = 0.0, sw = 0.0;
 							for (int dir = 0; dir < 8; dir++) {
 								int nt_neib = tn.getNeibIndex(nTile, dir);
 								if (nt_neib >= 0) {
 									neibs[dir] = ds[0][nt_neib];
+									if (! Double.isNaN(neibs[dir])) {
+										sw +=  neibw[dir];
+										swd += neibw[dir] * neibs[dir]; 
+									}
 								}
 							}
 							System.arraycopy(neibs, 0, neibs_sorted, 0, 8);
@@ -447,14 +571,17 @@ public class QuadCLT extends QuadCLTCPU {
 							if (Double.isNaN(neibs_sorted[min_defined - 1])) {
 								continue; // too few defined neighbors
 							}
+							swd /= sw; // here = not zero;
 							if (!fill_all[0]) {
 								anum_gaps.getAndIncrement();
 							}
 							double max_disp = neibs_sorted[num_bottom - 1];
-							if (!(ds[0][nTile] > max_sym_disparity)){
-								max_disp = Double.NaN;
+//							if (!(ds[0][nTile] > max_sym_disparity)){
+							if (!(swd > max_sym_disparity)){ // here compare to average, not this!
+								max_disp = Double.NaN; // so it will average all
 							}
-							double swd = 0.0, sw = 0.0;
+							swd = 0.0;
+							sw = 0.0;
 							for (int dir = 0; dir < 8; dir++) {
 								if (!Double.isNaN(neibs[dir]) && !(neibs[dir] > max_disp)) { // handles NaNs
 									sw +=  neibw[dir];
@@ -486,6 +613,11 @@ public class QuadCLT extends QuadCLTCPU {
 				break;
 			}
 			fill_all[0] = anum_gaps.get() == 0; // no new tiles filled
+			if (npass == (num_passes-1)){
+				System.out.println("fillDisparityStrength() LAST PASS ! npass="+npass+", change="+Math.sqrt(amax_diff.get())+" ("+max_change+")");
+				System.out.println("fillDisparityStrength() LAST PASS ! npass="+npass+", change="+Math.sqrt(amax_diff.get())+" ("+max_change+")");
+				System.out.println("fillDisparityStrength() LAST PASS ! npass="+npass+", change="+Math.sqrt(amax_diff.get())+" ("+max_change+")");
+			}
 		} // for (int npass = 0; npass < num_passes; npass+= fill_all[0]? 1:0 )
 		
 		return ds;

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

@@ -172,8 +172,10 @@ public class QuadCLTCPU {
     public void inc_accum()         {num_accum++;}
     public void set_orient(int num) {num_orient = num;}
     public void set_accum (int num) {num_accum = num;}
-    public int  getNumOrient()      {return num_orient;}
-    public int  getNumAccum()       {return num_accum;}
+    public int  getNumOrient()      {
+    	return num_orient;}
+    public int  getNumAccum()       {
+    	return num_accum;}
     
     public int getEarliestScene(
     		QuadCLT []     scenes) {
@@ -1241,6 +1243,7 @@ public class QuadCLTCPU {
 
 	
 	public String saveAVIInModelDirectory(
+			boolean     dry_run, 
 			String      suffix, // null - use title from the imp
 			int         mode_avi,
 			int         avi_JPEG_quality,
@@ -1258,12 +1261,16 @@ public class QuadCLTCPU {
 		}
 		file_path += ".avi";
 		imp.getCalibration().fps = fps;
-		(new AVI_Writer()).writeImage (
-				imp, // ImagePlus imp,
-				file_path, // String path,
-				mode_avi, // int compression,
-				avi_JPEG_quality); //int jpegQuality)
-		System.out.println("saveAVIInModelDirectory(): saved "+file_path);
+		if (dry_run) {
+			System.out.println("saveAVIInModelDirectory(): simulated writing "+file_path);
+		} else {
+			(new AVI_Writer()).writeImage (
+					imp, // ImagePlus imp,
+					file_path, // String path,
+					mode_avi, // int compression,
+					avi_JPEG_quality); //int jpegQuality)
+			System.out.println("saveAVIInModelDirectory(): saved "+file_path);
+		}
 		return file_path;
 	}
 

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

@@ -8579,8 +8579,14 @@ if (debugLevel > -100) return true; // temporarily !
 			final boolean    updateStatus,
 			final int        debugLevel)  throws Exception
     {
-  	
-    	
+		int     stereo_gap =         clt_parameters.imp.stereo_gap;
+		double  stereo_intereye =    clt_parameters.imp.stereo_intereye;
+		double  stereo_phone_width = clt_parameters.imp.stereo_phone_width; // 0 - no padding
+		boolean stereo_pad = (stereo_intereye > 0) && (stereo_phone_width > 0);  
+		int     video_crf =          clt_parameters.imp.video_crf;
+		String  video_codec =        clt_parameters.imp.video_codec.toLowerCase();
+
+		
     	long start_time_all = System.nanoTime();
 		OpticalFlow opticalFlow = new OpticalFlow(
 				quadCLT_main.getNumSensors(),
@@ -8597,7 +8603,8 @@ if (debugLevel > -100) return true; // temporarily !
 				num_seq = pathFirstLast.length; 
 			}
 		}
-		String [][] video_lists = new String [num_seq][];
+		String [][] video_lists =   new String [num_seq][];
+		int [][]    stereo_widths = new int  [num_seq][];
 		for (int nseq = 0; nseq < num_seq; nseq++) {
 	    	long start_time_seq = System.nanoTime();
 	    	System.out.println("\nSTARTED PROCESSING SCENE SEQUENCE "+nseq+" (last is "+(num_seq-1)+")");
@@ -8609,6 +8616,7 @@ if (debugLevel > -100) return true; // temporarily !
 						pathFirstLast[nseq].last); // int scene_last);  // last scene to process (negative - add length
 			}
 			String [][] video_list = new String[1][];
+			int [][] widths_list = new int [1][];
 			String model_directory = opticalFlow.buildSeries(
 		    		(pathFirstLast != null),   //boolean                                              batch_mode,
 					quadCLT_main,              // QuadCLT                                              quadCLT_main, // tiles should be set
@@ -8623,10 +8631,12 @@ if (debugLevel > -100) return true; // temporarily !
 					properties,                // Properties                                           properties,
 					reset_from_extrinsics,     // boolean                                              reset_from_extrinsics,
 					video_list,                // String [][]                                            video_list, // null or list of generated avi or webm paths
+					widths_list,
 					threadsMax,                // final int        threadsMax,  // maximal number of threads to launch
 					updateStatus, // final boolean    updateStatus,
 					debugLevel+2); // final int        debugLevel)
 			video_lists[nseq] = video_list[0];
+			stereo_widths[nseq] = widths_list[0];
 	    	System.out.println("PROCESSING SCENE SEQUENCE "+nseq+" (last is "+(num_seq-1)+") is FINISHED in "+
 	    			IJ.d2s(0.000000001*(System.nanoTime()-start_time_seq),3)+" sec ("+
 	    			IJ.d2s(0.000000001*(System.nanoTime()-start_time_all),3)+" sec from the overall start");
@@ -8647,7 +8657,6 @@ if (debugLevel > -100) return true; // temporarily !
 		}
 		// combine videos if generated
 		if ((video_lists.length > 1) && (video_lists[0] != null) && (video_lists[0].length > 1)) { // do not combine if single sequence or no videos
-			String concat_list_name="concat.list";
 			concat_videos: {
 				System.out.println("Generating "+(video_lists[0].length)+" combined video files.");
 				String videoDirectory = quadCLT_main.correctionsParameters.selectVideoDirectory(true,true);
@@ -8655,7 +8664,7 @@ if (debugLevel > -100) return true; // temporarily !
 					break concat_videos;
 				}
 				File video_dir = new File (videoDirectory);
-				video_dir.mkdirs(); // SHould already exist actually
+				video_dir.mkdirs(); // Should already exist actually
 				for (int nvideo = 0; nvideo < video_lists[0].length; nvideo++) {
 					// get name with <ts_sec_first>-<ts_sec_last>
 					//				String spath0 = video_lists[0][nvideo];
@@ -8664,7 +8673,8 @@ if (debugLevel > -100) return true; // temporarily !
 					String ts_sec0=name0.substring(0,name0.indexOf("_")); // seconds of the first timestamp
 					String ts_sec1=name1.substring(0,name1.indexOf("_")); // seconds of the last timestamp
 					String suffix0 = name0.substring(name0.indexOf("-")); // Skip timestamp
-					String combo_video_name = ts_sec0+"-"+ts_sec1+suffix0;
+		    		String combo_video_name = ts_sec0+"-"+ts_sec1+suffix0;
+		    		String concat_list_name = combo_video_name.substring(0, combo_video_name.lastIndexOf("."))+".list"; 
 					File list_to_concat = new File (video_dir,concat_list_name);
 					// delete if exists
 		    		if (list_to_concat.exists()) {
@@ -8672,22 +8682,49 @@ if (debugLevel > -100) return true; // temporarily !
 		    		}
 		    		
 		    		PrintWriter writer = new PrintWriter(list_to_concat, "UTF-8");
+		    		int this_stereo_width = 0;
+		    		int num_segments=0;
 		    		for (int i = 0; i <video_lists.length; i++) {
 		    			if ((video_lists[i] != null) && (video_lists[i].length > nvideo)) {
-		    				writer.println("file '"+video_lists[i][nvideo]+"'");
+		    				if ((new File(video_lists[i][nvideo])).exists()) {
+		    					writer.println("file '"+video_lists[i][nvideo]+"'");
+		    					if (stereo_pad) {
+		    						this_stereo_width = stereo_widths[i][nvideo];
+		    					}
+		    					num_segments++;
+		    				} else {
+		    					System.out.println("Missing video segment: "+video_lists[i][nvideo]);
+		    				}
 		    			} else {
 		    				System.out.println("Specific video segment "+i+":"+nvideo+" is missing, skipping");
 		    			}
 		    		}
 		    		writer.close();
+		    		if (num_segments == 0) {
+		    			System.out.println("No segments found for "+combo_video_name);
+		    			continue;
+		    		}
+
+		    		if (this_stereo_width > 0) {
+		    			String combo_base = combo_video_name.substring(0,combo_video_name.lastIndexOf(".")) ;
+		    			String combo_ext = combo_video_name.substring(combo_video_name.lastIndexOf(".")) ;
+		    			combo_video_name = combo_base+"-"+stereo_phone_width+"mm"+combo_ext;
+		    		}
 		    		File video_out =  new File (video_dir,combo_video_name);
 		    		if (video_out.exists()) {
 		    			video_out.delete();
 		    		}
 		    		double pts_scale = clt_parameters.imp.video_fps/clt_parameters.imp.sensor_fps;
-    	    		String shellCommand = String.format("ffmpeg -y -f concat -safe 0 -i %s -r 60 -vf setpts=%f*PTS %s",
-    	    				list_to_concat.toString(), pts_scale,video_out.toString());
-
+		    		String shellCommand;
+		    		if (this_stereo_width > 0) {//  add padding to stereo video
+		    			int padded_width= 16* ( (int) Math.round((this_stereo_width + stereo_gap) * stereo_phone_width/stereo_intereye/32));
+		    			shellCommand = String.format(
+		    					"ffmpeg -y -f concat -safe 0 -i %s -r 60 -vf pad=width=%d:height=0:x=-1:y=-1:color=black,setpts=%f*PTS -b:v 0 -crf %d -c %s %s",
+	    	    				list_to_concat.toString(), padded_width, pts_scale, video_crf, video_codec, video_out.toString());
+		    		} else {
+		    			shellCommand = String.format("ffmpeg -y -f concat -safe 0 -i %s -r 60 -vf setpts=%f*PTS -b:v 0 -crf %d -c %s %s",
+	    	    				list_to_concat.toString(), pts_scale, video_crf, video_codec, video_out.toString());
+		    		}
     				
     				Process p = null;
     				int exit_code = -1;