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Optically Written Watermarking Technology using One Dimensional High Frequency Pattern.
Kazutake Uehira
Mizuho Komori
Published in:
VISAPP (2) (2012)
Keyphrases
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high frequency
low frequency
high resolution
visual quality
wavelet transform
digital images
low pass
high frequency components
discrete wavelet transform
wavelet decomposition
subband
wavelet coefficients
high frequencies
machine learning
wavelet domain
multi resolution analysis
phase shifting
low bit rate coding