Image fragile watermarking algorithm based on DWT domain of chaotic maps
This thesis raises a much safer fragile digital image watermarking algorithm to the matter of digital image content testing and protection.This algorithm applies the chaotic theory,derives retrieval watermarking from the main DWT coefficients of sub-block;after the embed of retrieval watermarking,derives testing watermarking from the retrieval watermarking,which is acted part of sub block,embeds it into the lowest point of sub block.The experiment shows that the algorithm in this thesis could locate correctly where the image contents are falsified,so with a good testing function.
chaotic maps fragile watermarking wavelet transform image testing falsified testing
Huifen Huang
ShanDong YingCai University,Jinan Shandong,China
国际会议
太原
英文
21-23
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）