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Watermark for Digital Images
总结
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.
技术优势
Rapid and robust authentication of imagesDecreased chances of forgery
技术应用
Computer SecuritySoftware Industry
详细技术说明
Edward DelpVIPER (Video and Image Processing Laboratory)Purdue Electrical and Computer EngineeringPurdue Biomedical Engineering
国家
United States
申请号码
6,625,295
国家/地区
美国
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