Detection of image spam

Details Detection of image spam Detection of image spam

2006-12-11

2010-10-19

Kim, Charles (Department: 2624)

Image analysis

Pattern recognition

Template matching

C382S219000, C382S100000

Reexamination Certificate

active

07817861

ABSTRACT:
A method of detecting spam images in electronic objects such as emails includes compressing images extracted from the electronic object into a common representation using a lossy compression function and determining if the compressed forms of the extracted images are identical to the compressed form of any known spam image from a corpus of known spam images, which compressed forms are the known spam images compressed into the common representation using the lossy compression function. The electronic objects are signalled as embedding a spam image on the basis of a compressed form of an extracted image extracted from an electronic object being determined to be identical to the compressed form of a known spam image.

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