A Robust Watermarking Algorithm Based on Histogram
Distal image histogram is an important global feature, in this paper, histogram will he used to embed binary watermark in the space domain, in the watermark embedding process, firstly, the corresponding histogram of image is generated according to the original images characteristics, which shows the probability of the corresponding pixel in gray scale; Secondly, the distances between adjacent elements of histogram are calculated, and found their maximum; Then, the histogram is adjusted according to the maximum and pretreated watermark; Finally, the watermark image is generated. In the watermark extracting process, in accordance with the histogram of watermark image and the original image, and the pixels embedded watermark are found, thereby extracting watermark. The experimental results show that the algorithm has good anti-geometric nature of attacks.
histogram digital watermarking invisibility PSNR
Shumei Wang Wenbao Hou
School of Computer Science and Technology, Xuzhou Normal University, Jiangsu Xuzhou 221116, China Department of Construction Equipment and Environmental Engineering, Xuzhou Institute of Architectura
国际会议
2009 International Workshop on Information Security and Application(2009 信息安全与应用国际研讨会)
青岛
英文
453-456
2009-11-21（万方平台首次上网日期，不代表论文的发表时间）