Reversible image digital watermark overflow solution

The invention provides a reversible image digital watermark overflow solution, belongs to the technical field of communication, and is used for solving the problem of overflow in case of embedding thedigital watermark in the image. The image with embedding of the watermark is cyclically scanned to detect the overflow pixels in the image, and the overflow pixel values are adjusted one by one and the adjustment record is generated. The idea of verification is introduced, and the adjustment record and the verification information are embedded in the image according to the designed coding mode byusing a reversible watermark algorithm so that one image having no overflow pixel can be finally obtained. With application of the method, the problem of pixel overflow of the image can be effectively solved, the problem of producing new overflow in case of embedding the adjustment information can also be solved, and the method is completely reversible and can be applied to various digital watermark technologies including