Spam filtering: products

We developed two plug-ins against image spam for the open source SpamAssassin anti-spam filter: BayesOCR and Image Cerberus. The first is based on a semantic analysis of the text embedded into images (OCR-based approach), while the latter performs a low level visual analysis of the image. The two plug-ins can be downloaded from their respective pages and tested within the SpamAssassin filter.

• BayesOCR plug-in
• Image Cerberus