I'm making a regression testing suite for some rendering software. I need to be able to load an image file (PNG or TGA, ideally) and compare the pixel values to a standard approved image.
I'd like it to be command line driven too, so I can make a batch file to run all the tests.
All the compare utilities I have found so far either show differences (I just need it to fail if they are different) or compare all the bytes, meaning that meta-data will trigger a fail.
Anyone got any suggestions? I am not a coder, and can only barely cobble a batch script together.
Thanks for any suggestions.