Abstract
For the problem that the traditional digital watermarking algorithm is less robustness against geometric attacks, this paper introduces the related content of digital watermarking technology, which combs digital watermarking technology, digital watermarking attack technology and digital watermarking evaluation method, and summarizes the improved algorithms proposed in recent years. Next, the traditional wavelet transform algorithm and the improved algorithm based on DCT transform are selected for comparison experiments. The latter combines Arnold scrambling and SVD decomposition, which has better shear resistance. Finally, combined with the research status, the future research focus of digital watermarking algorithm is prospected.
Highlights
For the problem that the traditional digital watermarking algorithm is less robustness against geometric attacks, this paper introduces the related content of digital watermarking technology, which combs digital watermarking technology, digital watermarking attack technology and digital watermarking evaluation method, and summarizes the improved algorithms proposed in recent years
Digital watermarking technology refers to an information technology that uses the redundancy of media such as images and sounds to embed other secrets that are not perceived in the information content[1]
The first derivative of the filter is applied to these linear structures, which can detect the end points of the line or the points with larger curvature, and has better robustness and robustness than other methods.[9]Aiming at the problem of poor anti-geometric attack ability of wavelet transform domain digital watermarking algorithm, a DWT digital watermarking algorithm based on SIFT feature point matching is adopted
Summary
Digital watermarking technology refers to an information technology that uses the redundancy of media such as images and sounds to embed other secrets that are not perceived in the information content[1]. This embedded information is usually not visible, but can be detected or extracted by calculation means. The highly robust algorithm can still completely extract the water-printed multimedia products after being attacked, and determine the property rights information. The higher the robustness, the better the watermark's resistance to attack, and the more effective it is to protect the intellectual property of digital products
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