水印置乱的毕业论文

花了我好长时间去查字典和校对啊，楼主能不能多加几分给我啊？Digital image watermarking technology research Abstract: With the computer network technology and the rapid development and dissemination of copies of digital works become more convenient, while delivering a number of works of information security and the protection of copyright protection has become an urgent need to address the real issues. Digital watermarking is in the field of information security in recent years the rise of new methods to protect intellectual property rights. Digital watermarking technology is the information hidden an important component of the widely used in digital media copyright protection, have great prospects for development. This paper first digital watermarking technology for the development of the status quo and its related technologies were discussed and then the introduction of Fourier transform basic theory, digital watermarking algorithm as the algorithm theoretical foundation and then used a Fourier domain based on the relevance of the test Watermarking algorithm to achieve the original image of the watermark embedding and extraction and finally the use of MATLAB software and the embedded watermark to the right to conduct the simulation and test in two different attacks, the security of the algorithm. The algorithm combines Arnold scrambling methods, classic detection methods and related Fourier domain and embedded in the adoption of two embedded pseudo-random sequence is not related to the method, effectively raising the watermark security and relevance of the test Accuracy.