Perception-driven watermarking with evolutionary block mapping

Liujuan Cao; Chaoguang Men; Jianguo Sun

doi:10.1117/12.863280

4 August 2010 Perception-driven watermarking with evolutionary block mapping

Liujuan Cao, Chaoguang Men, Jianguo Sun

Proceedings Volume 7744, Visual Communications and Image Processing 2010; 77441X (2010) https://doi.org/10.1117/12.863280
Event: Visual Communications and Image Processing 2010, 2010, Huangshan, China

Abstract

This paper presents a perception-driven, block-based wavelet watermarking algorithm, which merits in both perceptual invisibility and robustness against watermark attacking. First, attention-based region saliency analysis is adopted to select perceptually unconcerned regions for watermark embedding. Second, wavelet transform is carried out to embed secret message into high frequency coefficients within the perceptually unconcerned regions. Especially, we present an optimal block mapping substitution method, which adopts genetic algorithm to reduce PSNR cost. Its main idea is to minimize the degradation of the watermarked image by learning a best mapping function between original image blocks and secret messages at global scope. Extensive experiments are conducted to validate both the perceptual invisibility and robustness against Gaussian Noise and JPEG compression attacks. We also give PSNR comparison with state-of-the-art methods to demonstrate our advantages.

Citation Download Citation

Liujuan Cao, Chaoguang Men, and Jianguo Sun "Perception-driven watermarking with evolutionary block mapping", Proc. SPIE 7744, Visual Communications and Image Processing 2010, 77441X (4 August 2010); https://doi.org/10.1117/12.863280

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