A Robust Image Watermarking Method Based on Adaptive Feature Points Detection

摘要：

This paper presents a new image watermarking method that is robust against geometric attacks. The proposed method embeds the imperceptible watermarks in a triangle in the spatial domain. The vertexes of the triangle are found by the modified Harris corner detection. In order to get the most robust points, we use the adaptive threshold to work on various possible attacked images. The points passed all the challenges are chosen to be vertexes of the triangle. Watermark is also used to enhance the strength of vertexes. The embedding strength of the watermark depends on the local variance of each pixel. Experimental results demonstrate that the proposed scheme is able to withstand a variety of attacks.

作者: Yan Liu Jiying Zhao

作者单位: Multimedia Communications Research Laboratory, School of Information Technology and Engineering, University of Ottawa 800 King Edward Ave., Ottawa, Ontario, Canada K1N 6N5

会议类型: 国际会议

会议名称: 2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)

会议地点: 广西桂林

会议语种:英文

页码: 49-53

在线出版日期: 2006-06-25（万方平台首次上网日期，不代表论文的发表时间）