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The Scientific World Journal
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2015
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Article
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Fig 3
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Research Article
Protection of Health Imagery by Region Based Lossless Reversible Watermarking Scheme
Figure 3
Performance in terms of watermark size versus PSNR: (a) Lena, (b) peppers, (c) boat, and (d) Barbara.
(a)
(b)
(c)
(d)