private void goRight(ColorPatch patch, int x, int y) {
		if ( ++x < image.getWidth() ) {
			Color color = pixel(x, y);
			if ( isIncluded(x, y) ) {
				if ( patch.getColor().distance(color, Color.RGB_DISTANCE) < tolerance ) {
					patch.add(color);
					goDown(patch, x, y);
					goRight(patch, x, y);
				}
			}
			exclude(x, y);
		}
	}