A simple and easy spatial domain image information hiding technology
Classification： Company News
date：2023-01-16
The watermark information is randomly added to each image block, rather than adding the watermark information to the image block described from top to bottom and left to right, for two main reasons: first, to prevent the attack may completely cut off the image part containing the watermark so that the watermark cannot be extracted, and to ensure that the watermark is not continuously cut when the image is cut, and the overview of the watermark image can also be observed from a visual point of view; Second, the random addition of watermark information that relies on the key is also considered from the perspective of watermark security.
The implementation method of watermark random embedding is as follows: set the size of the original image as M point ×N point, and a random sequence of length M×N is generated by the key key2, and its value x is a random rearrangement of the natural numbers of 1-M×N, x=p(i), x is the sequence number of the image block of the ith (i=1, 2,...,mm×nm) watermark point embedded in the host image, and it is proved by experiments that this random embedding method can well resist the attack of shearing.
key word： A simple and easy spatial domain image information hiding technology
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Company leader: Hua Jianhe Tel：18280292402 E-mail: yufei@yufei.cc
Address: 1309, Zhonghai Building, No. 36, Longteng East Road, Wuhou District, Chengdu
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