Negative Image Check

I am using java script and have stop on error on. Is there a way to do a kind of reverse image check? Instead of having a region check return a pass when it finds an image can you do a check that if it finds an image it that it returns a failure? When stop on error is on and you do an image check and it fails to find the image it stops the script and fails the test or else I could just do a normal regon check and check the return value of the check.