Detect Image Tamper by Semi-Fragile Digital Watermarking  

作　　者：LIUFeilong WANGYangsheng 

机构地区：[1]InstituteofAutomation,ChineseAcademyofSciences,Beijing100080,China

出　　处：《Chinese Journal of Electronics》2004年第1期54-57,共4页电子学报（英文版）

摘　　要：To authenticate the integrity of image while resisting some valid image processing such as JPEG compression, a semi-fragile image watermarking is described. Image name, one of the image features, has been used as the key of pseudo-random function to generate the special watermarks for the different image. Watermarks are embedded by changing the relationship between the blocks' DCT DC coefficients, and the image tamper are detected with the relationship of these DCT DC coefficients.Experimental results show that the proposed technique can resist JPEG compression, and detect image tamper in the meantime.

关 键 词：数字水印 图像完整性 半易碎图像 刻度量化 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]