Implemented LMA-based filtering of the moving targets

src/main/java/com/elphel/imagej/common/ShowDoubleFloatArrays.java

@@ -1067,7 +1067,7 @@ G= Y  +Pr*(- 2*Kr*(1-Kr))/Kg + Pb*(-2*Kb*(1-Kb))/Kg
 		if (pslice_titles != null) {
 			pslice_titles[0] = slice_l;
 		}
-		double [][] file_data = ShowDoubleFloatArrays.readDoubleArray(
+		double [][] file_data = readDoubleArray(
 				imp,       // ImagePlus   imp,
 				0,         // 	int         num_slices, // (0 - all)
 				wh);       // int []      wh); // int []      wh)

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

@@ -2422,12 +2422,18 @@ public class Correlation2d {
 			boolean    ignore_border, // only if fpn_mask != null - ignore tile if maximum touches fpn_mask
 			boolean    debug)
 	{
+		boolean exclude_margins = false;
+		if ((fpn_mask!=null) && (fpn_mask.length==0)) {
+			exclude_margins = true;
+			fpn_mask = null;
+		}
 		boolean calc_fraction = data_width < 0;
 		if (calc_fraction) {
 			data_width = -data_width;
 		}
 		int data_height = data.length/data_width;
-		int center_xy = (data_width - 1)/2; //  = transform_size - 1;
+//		int center_xy = (data_width - 1)/2; //  = transform_size - 1;
+		int center_xy = data_width / 2; //  = transform_size - 1;
 		double x0 = center_xy, y0 = center_xy;
 		int imax= 0;
 		for (int i= 1; i < data.length;i++) {
@@ -2438,6 +2444,12 @@ public class Correlation2d {
 		double mx = data[imax];
 		int ix0 = imax % data_width;
 		int iy0 = imax / data_width;
+		if (exclude_margins) {
+			if ((ix0 == 0) || (iy0== 0) || (ix0 == (data_width-1)) || (iy0 == (data_height-1))) {
+				return null; // maximum is on the tile border. 
+			}
+		}
+		
 		x0 = ix0;
 		y0 = iy0;
 		// if (fpn_mask != null