An Adaptive Reversible Digital Watermarking Method Based on Integer Transformation
A technology of integer transformation and digital watermarking, which is applied in image data processing, image data processing, instruments, etc., to achieve the effect of less image distortion, lower distortion, and improve PSNR
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[0037] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0038] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0039] Such as figure 1 As shown, the adaptive reversible digital watermarking method based on integer transformation in the embodiment of the present invention includes the following steps:
[0040] S101: Divide the original image into blocks, the sub-blocks are divided into two parts, a shadow set and a blank set, and firstly embed the shadow set;
[0041] S102: The pixel X in each shadow block is regarded as an embedding unit, the local variance of each shadow block is calculated,...
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