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Watermark for Digital Images
總結
Purdue University researchers have developed a way for an owner to digitally "sign" an image by adding an invisible structure known as a digital watermark. The owner can identify changes made to the watermarked image with the verification algorithm. This test can allow images with minor alterations to still be authentic. JPEG image compression is compatible with this algorithm.
技術優勢
Rapid and robust authentication of imagesDecreased chances of forgery
技術應用
Computer SecuritySoftware Industry
詳細技術說明
Edward DelpVIPER (Video and Image Processing Laboratory)Purdue Electrical and Computer EngineeringPurdue Biomedical Engineering
國家
United States
申請號碼
6,625,295
國家/地區
美國
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