1. A Robust Digital Watermarking Of Satellite Image at Third Level DWT Decomposition
Source：International Conference on Computational Intelligence and Multimedia Applications 2007, Dec. 2007, pp Author：K.Anusudha, A.Sangeetha, and S.Ayeswarya
Reporter：Ching-Chih Cheng
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2. Outline Introduction Proposed scheme Experimental Results Conclusions
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3. Introduction Original Image Highlighted Region of Interest Watermark
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4. Proposed scheme (1/2) Watermark Insertion G(x,y) 600*363 H(x,y)
100*100
watermark I(x,y)
10*10
H(x,y)
3-leve DWT
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12.5*12.5= > 100

5. Proposed scheme (2/2)
Watermark Extraction =
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6. Experimental Results (1/2)
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7. Experimental Results (2/2)
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8. Conclusions
propose a Region of Interest Watermarking algorithm for copyright protection of satellite images
provide high security to the copyright information
prevent access from unauthorised users
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