Its hard to say. Copyrights is how the print/media industry protect their images. Im a graphic designer and I would never dare to use anyone's copyright images from stock photography or photo files without paying the royalty. Major lawsuits will be filed if they catch you making money off their copyrighted images.


But for uncopyrighted images, its hard to argue. Yes you can file a complaint and try to sue, but I doubt "according" to laws that you will get much money from it. You should look at logos and trademarks, they are basically taking each other's designs, and just tweaking it here and there.