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Compression and rotation resistant watermark using a circular chirp structure.
Christopher E. Fleming
Bijan G. Mobasseri
Published in:
Security, Steganography, and Watermarking of Multimedia Contents (2006)
Keyphrases
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fourier transform
digital images
image fidelity
image processing
image processing operations
geometric distortions
frequency domain
image compression
coding scheme
image quality
data compression
compression scheme
rotation invariant
lossless compression
spread spectrum
multiresolution
multiscale