Finally,aiming at the newest situation which recently the picture spam increases rapidly,this paper has carried on the outlook to the development of anti-spam technology in the future.

The ever increasing volumes of image-based spam e-mails are bringing more annoyance to internet users,and how to filter it has become a pressing problem.

Improved ReliefF algorithm applied in detecting image spam

To circumvent text-based anti-spam filters, spammers embed spam message into images and send them as attachments, which is called“image spam”.

Detecting corners of text in spam images

New approach for spam sample collection;

Design of anti-spam mail filter based on address and content;

Implementation and evaluation of Chinese spam filtering system;