I'm looking to do some statistical analysis on the effect on an image of various compression systems, with the end-goal of hopefully being able to determine which is a recompressed version of which. To do this, I need to be able to feed a set of test-images through a assortment of different image compressors.
Are there any resources for this sort of thing? Is there anything like a website where I can submit something, and get versions recompressed via an assortment of compressors?
Alternatively, is there any good information on which compressors are commonly used? I'm realizing I don't even know to what extent most of the image editors out there share code.