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Robust hashing for image authentication using quaternion discrete Fourier transform and log-polar transform.
Junlin Ouyang
Gouenou Coatrieux
Huazhong Shu
Published in:
Digit. Signal Process. (2015)
Keyphrases
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discrete fourier transform
image authentication
fourier transform
frequency domain
discrete cosine transform
digital watermarking
watermarking scheme
public key
jpeg compression
image content
watermarking technique
feature vectors
computationally efficient
spatial domain
radon transform
copyright protection