Method xor

ij/src/main/java/ij/gui/Overlay.java:321–323

(int[] indexes)

	 * in this overlay that have an index in the array ‘indexes’.
	*/
	public Roi xor(int[] indexes) {
		return Roi.xor(toArray(indexes));
	}

	/** Returns a new Overlay that has the same properties as this one. */
	public Overlay create() {