1. Digital Watermarking for Image Authentication with Localization
Source : 2006 IEEE International Conference on Image Processing 8-11 Oct. 2006, pp
Authors : Huajian Liu, Martin Steinebach
Speaker : Ching-Chih Cheng
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2. Outline Introduction Purposed scheme Experimental results Conclusions
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3. Introduction Digital watermarking Copyright watermarking
assert ownership
Authentication watermarking
integrity & authenticity
Watermarking is a method of providing a persistent digital identity for audio, video, print and images
Making sure all the parts of the image are not modified
Original cover image
Watermark W
Stego image
Embedding
Extracting
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4. Purposed scheme (1/4)
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5. Purposed scheme (2/4)
Random permutation
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6. Purposed scheme (3/4) Watermark embedding Method 1 Example Method 2
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7. Purposed scheme (4/4)
Watermark detection
Example
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8. Experimental results
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image size 720x576

9. Conclusions
improve the resolution of tampering detection with low watermark payload
secure to local attacks
2019/5/9
MSN Lab