docs: public static void fillRectangle(InterleavedS32 img, int value, int x0, int y0, int width, int height) {
  		int x1 = x0 + width;
  		int y1 = y0 + height;
  
  		if( x0 < 0 ) x0 = 0; if( x1 > img.width ) x1 = img.width;
  		if( y0 < 0 ) y0 = 0; if( y1 > img.height ) y1 = img.height;
  
  		int length = (x1-x0)*img.numBands;
  		for (int y = y0; y < y1; y++) {
  			int index = img.startIndex + y*img.stride + x0*img.numBands;
  			int indexEnd = index + length;
  			while( index < indexEnd ) {
  				img.data[index++] = value;
  			}
  		}
  	}