> Werner the case you have on SE seems to indicate you need a
> translation invariant test, I think.
Whatever you say :-) Great that there are people on this list who can
actually contribute to the topic.
> In your case you could compute min diff over all possible
> translations that would bring your first test result to 0, while not
> appropriate for all test cases, it seems like this would be an ok
> thing to do for many of them (ImageMagick can't do this, I don't
> think)
Can you provide a demo?
Werner