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Digital watermarking algorithms for recovery and authentication of compressed images
Summary
Shih-Fu Chang, Ph.D.
Technology Benefits
Does not degrade image qualityAccepts legitimate and innocent alterations to images Detects malicious alterations such as cropping and replacementRecovers approximate pixel values in corrupted areasPatent information:Patent Issued (US 6,879,703)Tech Ventures Reference: IR M01-018
Technology Application
Authenticator for compressed and altered imagesRecovery system for damaged image filesDigital image management system for photographers, artists, publishers, etc.
Detailed Technology Description
Shih-Fu Chang, Ph.D.
Country/Region
USA
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