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Published byCecil Goodman Modified over 9 years ago
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Using quad smoothness to efficiently control capacity–distortion of reversible data hiding Chi-Nan Lin, Daniel J. Buehrer, Chin-Chen Chang, Tzu-Chuen Lu The Journal of Systems and Software 日期 :3.28 報告者 : 許睿中
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Outline Related works The proposed scheme Experimental results Conclusion
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Related works-Tian’s method Embedding h=5h’=11 206203 201 209 198
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Related works-Tian’s method Extraction
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Related works-Alattar’s method ab cd 2530 3540 a’b’ c’d’ 1728 3748 cover pixelsstego pixels Embedding
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Related works-Alattar’s method a’b’ c’d’ 1728 3748 ab cd 2530 3540 Extraction recover pixels stego pixels
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The proposed scheme
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a1a2b1b2 a3a4b3b4 c1c2d1d2 c3c4d3d4 The proposed scheme
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Experimental results
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Embedding 100000 bits with Alattar’s versus the propose method.
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Experimental results Stego-lena512.gif PSNR=31.8 payload=196299 Stego-baboon512.gif PSNR=21.2 payload=179918
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Conclusion This proposed methods enhances Alattar’s work in term of effectively controlling the capacity versus distortion behavior.
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