基于JPEG2000感兴趣区域自适应水印算法

Adaptive Watermark Algorithm Based on JPEG2000 ROI Area

提出一个基于JPEG2000感兴趣区域(ROI)的自适应水印算法。该算法结合了感兴趣区域的编码特点及HVS特性,在量化的ROI区域中筛选高频系数实现水印嵌入,使嵌入图保持良好的视觉效果,也使嵌入的水印信息在经历了JPEG2000压缩后仍具有较强的鲁棒性。

An adaptive watermark algorithm based on JPEG2000 ROI area is proposed in this paper.Using of the characteristics of JPEG2000 ROI area and HVS, the algorithm selects the important coefficients to embedding watermark. Therefore, the Visual effect of embedded image is fine and the watermark information is robust through compressed by JPEG2000.