A New Design Calculation Expression Of Information Of Chinese Test Zero-watermark Scheme Design

The design of watermarking algorithms proposed in this paper fully considers the shortcomings of traditional embedded watermark and put forward Chinese text zero watermarking scheme. This scheme adopts a relationship between the words relation measure (correlation) to calculate the information entropy to obtain statements watermarking method. Compared with traditional embedded watermark, it can realize multimedia copyright protection completely, safely and effectively, and prevent illegal information transmitted in the Internet. In order to verify the validity of the watermark, watermark performance is analyzed. Compared the present algorithm with other similar algorithms in the past through the simulation experiment, the results show that the algorithm has good robustness and ability against the attack, there is a great improvement in the aspect of vulnerability. General research results are as follows:1. The characteristics and shortcomings of existing watermarking technology are analyzed and a kind of watermarking scheme to use word relevance computation expressions of information entropy of Chinese text zero is put forward;2. The algorithm idea is designed and implemented. The general step is based on the relationship between the words of the sentence to calculate information entropy, and then according to the information entropy size to identify important sentences, to encrypt selected statement information entropy, finally important sentence serial number and entropy and entropy of encrypted values in sequence are obtained to complete Chinese text zero watermarking structure and register file;3. In order to verify the legitimacy of the detected text, the watermark decision must be carried out. The main goal of watermark decision is to compute similarity coefficients between registered archived text watermarking and the detection of text watermarking, and use the coefficient for a standard to judge the identical degree of watermarking;4. After an experimental test, the performance of the watermark is fully analyzed. The robustness and resistance to attack between the present algorithm and past algorithms are compared through the simulation experiment. The results show the robustness of the algorithm is improved greatly and the ability against the attack has also upgraded. The watermark provability has greatly improved compared with traditional algorithms. At last, modifications of the present scheme are proposed and look forward to the development of digital watermarking.