strengthening qim-based watermarking by non-uniform discrete cosine transform

Abstract

Motion Pictures Laboratories, Inc.; Thomson; Lecture Notes in Computer Science (LNCS); Vision Research Lab, UCSB; INRIABeing extremely precise and at a low loss of perceptual quality, the attacks of value modification and optimized noise reduction still threaten the watermarking based on quantization index modulation (QIM). To resist them, the paper construct

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