Image based spam blocking
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United States of America Patent
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Nov 8, 2016
Issued Date -
N/A
app pub date -
Feb 11, 2014
filing date -
Dec 31, 2008
priority date (Note) -
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Abstract
A fingerprint of an image identified within a received message is generated following analysis of the message. A spam detection engine identifies an image within a message and converts the image into a grey scale image. The spam detection engine analyzes the grey scale image and assigns a score. A fingerprint of the grey scale image is generated based on the score. The fingerprint may also be based on other factors such as the message sender's status (e.g. blacklisted or whitelisted) and other scores and reports generated by the spam detection engine. The fingerprint is then used to filter future incoming messages.
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