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Mathematical Problems in Engineering
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Special Issues
Mathematical Problems in Engineering
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2017
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Article
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Tab 2
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Research Article
Texture Directionality-Based Digital Watermarking in Nonsubsample Shearlet Domain
Table 2
The relationship between
and watermarking imperceptibility.
0.05
0.2
0.5
0.7
1
SSIM
1.0000
1.0000
0.9999
0.9998
0.9973