November 2014
Intermediate to advanced
236 pages
7h 4m
English
book
Image and Video Compression
by Madhuri A. Joshi, Mehul S. Raval, Yogesh H. Dandawate, Kalyani R. Joshi, Shilpa P. Metkar
Content preview from Image and Video Compression
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202 Image and Video Compression
(c)
(d)
FIGURE 8.21 (continued )
Watermarked images: (a) leaves; (b) label; (c) kid; (d) Ganpati.
TABLE8.2
Performance Comparison Using DWR and VIF for Watermarked
Images
Image DWR (dB) VIF
Leaves 45.6 0.976
Label 47.4 0.976
Kid 48.7 0.975
Ganpati 50.3 0.975
203Compressive Sensing
watermark w and the estimated watermark
w
ˆ
to decide the integrity of an
image. It preserves the integrity if the MSE (w,
w
ˆ
) < τ
mse
, where τ
mse
repre-
sents a xed threshold which is predetermined by posing it as a hypothesis
testing problem. T ...
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