A Semi-fragile Watermarking Authentication Algorithm Basedon Block and Wavelet Domain of Image
[1]WU Fengxiang,YUE Xiao,XU Jiangfeng.A Semi-fragile Watermarking Authentication Algorithm Basedon Block and Wavelet Domain of Image[J].Journal of Zhengzhou University (Engineering Science),2012,33(02):10-13,18.[doi:10.3969/j.issn.1671-6833.2012.02.003]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
33
Number of periods:
2012 02
Page number:
10-13,18
Column:
Public date:
2012-03-10
- Title:
- A Semi-fragile Watermarking Authentication Algorithm Basedon Block and Wavelet Domain of Image
- Keywords:
- semi-fragile watermark; block; wavelet transform ; image authentication
- CLC:
- TN911.73 TP309.7
- Abstract:
- A new semi-fragile watermarking authentication algorithm is proposed, the algorithm first dividethe image into four blocks, then the feature of each block of image is extracted from low frequency coefficienof three level wavelet transform, and then the feature as the watermark is embedded into corresponding blockof image, the four blocks embedded into watermark were combined into a new image. The watermark can beextracted without involving either the host image or the original watermark. Theoretical analysis and experi.mental results show that the algorithm can be carriers of images of any size, and with good transparency, andit can not only resist non-malicious attacks, such as noise and lossy compression, it can also efectively detectand locate the cut,replaced, and other malicious attacks.
- References:
- -
- Similar References:
Memo
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Last Update:
1900-01-01
