Added filtering, improved center DSI near margins

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

@@ -5828,7 +5828,7 @@ public class OpticalFlow {
 				}
 			}
 			// just for verification
-			boolean show_clt = false;// true;
+			boolean show_clt = true; // false;// true;
 			if (show_clt) {
 				center_CLT.showCenterClt(
 						clt_parameters); // CLTParameters clt_parameters,			
@@ -15495,6 +15495,7 @@ public class OpticalFlow {
 		return mb_vectors;
 	}
 	
+	// Use TileProcessor.fillNaNs
 	public static double[] fillGapsDouble( 
 			double []  data,
 			boolean [] mask_in, // do not process if false (may be null)

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

@@ -1689,7 +1689,8 @@ public class QuadCLT extends QuadCLTCPU {
 		int width=ref_scene.getTilesX()*ref_scene.getTileSize();
 		int height=ref_scene.getTilesY()*ref_scene.getTileSize();
 		// window in pixels!
-		final Rectangle window = (discard_border > 0)? (new Rectangle(discard_border,discard_border,width-2*discard_border,height-2*discard_border)): null; 
+		boolean apply_window_filter = (discard_border > 0) || (max_fold > 0) || (min_in_row_col > 0);
+		final Rectangle window = apply_window_filter ? (new Rectangle(discard_border,discard_border,width-2*discard_border,height-2*discard_border)): null; 
 		if (ref_pXpYD != null) { // cuas mode, ref_pXpYD defines offset reference scene
 			pXpYD=OpticalFlow.transformToScenePxPyD(
 					ref_pXpYD, // final double [][] reference_pXpYD,   // invalid tiles - NaN in disparity. Should be no nulls, no NaN disparity

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

@@ -932,11 +932,7 @@ public class QuadCLTCPU {
             	}    			
     		}
     	}
-    	
-    	
-    	
     	return new double [] {coeffs[0][1],coeffs[1][1],coeffs[2][1]};
-
     }
     
     public static double [] getOmegaCorrections(
@@ -13889,7 +13885,8 @@ public class QuadCLTCPU {
 				  tp.getTilesX(),
 				  tp.getTilesY(),
 				  true,
-				  "filtered_bgnd_disp_strength",dbg_titles);
+				  "filtered_bgnd_disp_strength",
+				  dbg_titles);
 		  }
 		  int num_bg = tp.clt_3d_passes.get(bg_scan).setTileOpDisparity( // other minimal strength?
 				  bg_sel, // bg_use, // bg_sel, // bg_use, // boolean [] selection, measure all that can be bg

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

@@ -8835,7 +8835,7 @@ ImageDtt.startAndJoin(threads);
 	}
 
 	/**
-	 * Us this one when filling full frame and prohibit is not used. Faster as it first tries lower resolution, then full
+	 * Use this one when filling full frame and prohibit is not used. Faster as it first tries lower resolution, then full
 	 * @param data_in       input data array
 	 * @param width_full    width of the input dtata
 	 * @param decimate_step decimation step (such as 16)