Color image robust watermarking method based on tensor singular value decomposition
A singular value decomposition and color image technology, which is applied in image watermarking, image enhancement, image analysis, etc., can solve the problems of not fully utilizing the close relationship and not being able to better protect the copyright of color images
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[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0039] A color image robust watermarking method based on tensor singular value decomposition proposed by the present invention, which includes two parts: watermark embedding and watermark extraction;
[0040] Such as Figure 1a As shown, the specific steps of the watermark embedding part are:
[0041] Step 1_1: Denote the original color image with width M and height N as I org , will I org The R channel image, the G channel image, and the B channel image are correspondingly marked as I R , I G , I B; Denote the grayscale watermark image with width A and height B as W; then perform singular value decomposition on W to obtain the principal component of W, which is denoted as J; where 1R , I G , I B Both have width M and height N, and J have width A and height B.
[0042] In this embodiment, in step 1_1, perform singular value decompositio...
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