The Research of Image Watermarking Encryption Algorithm
The image watermarking technology is an important aspect about multimedia authentication and copyright protection, in order to enhance its reliability and security, this paper proposes an encryption algorithm based on color image watermarking in security DCT domain. By processing the color watermark images R, G, B pixels, that is, converts the pixel value matrix into binary one-dimensional sequence, then get the one-dimensional sequence as the watermark embedding the carrier images, overcame the traditional understanding defects about the DCT domain can only be embedded two value image. Furthermore, through setting the key to strengthen the security and prevent unauthorized watermark recovery and repair. Finally use the MATLAB/SIMULINK and the Embedded MATLAB? to build the watermark embedding and detection system model, quickly and intuitively verify the correctness of the watermark encryption algorithm. Experimental results demonstrate that its robustness is good and computational complexity is low, basically achieve nondestructive extraction.
watermarking image encryption DCT simulink
Shanshan Zhang Xiaohong Wang Shizheng Zhou
Department of Computer Sciences, Communication university of China Beijing, 100024, China
国际会议
昆明、丽江
英文
821-824
2011-04-15（万方平台首次上网日期，不代表论文的发表时间）