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Clustered-dot color halftone watermarks using spatial frequency and color separability.
Basak Oztan
Gaurav Sharma
Published in:
Color Imaging: Displaying, Processing, Hardcopy, and Applications (2010)
Keyphrases
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spatial frequency
color images
color information
texture segmentation
low frequency
pattern recognition
digital images
high frequency
image segmentation
high quality
high resolution
color constancy
multi band
wigner distribution
direct binary search