RW, > I stopped using OCR a long time ago because I didn't find that image > spam was particularly hard to catch. These days I find that spams with > images are mostly either pictures of Russian girls or spoofed corporate > logos.
Then you need something able to detect the amount of flesh on a picture :) A student here had tried to work on something like that, not sure he ever managed to do something usable. I am also useing iamegeCerberus that try to classify images on some meta data like size, position of text, etc. But it is not doing any ocr. Olivier