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oai:recercat.cat:2117/982592026-01-21T12:51:21Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc Sayrol Clols, Elisa author Martínez Serra, Elena author 2015 In this paper, three different perceptual masks in the wavelet domain are investigated for image watermarking systems. Along with an already existing method, we present two alternative perceptual masks based on visual detection thresholds in Y, Cb and Cr color channels and on the JPEG2000 significance coding step. A procedure to compare the perceptual masks consists on evaluating on one side, the PSNR and the S-CIELAB visual quality measure and on the other side, the detection performance by a blind watermarking scheme. Experimental results proof the better performance of the two alternative masks as well as the insights that can be derived from the comparison approach. © 2004 EUSIPCO. Peer Reviewed Postprint (published version) Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal::Processament de la imatge i del senyal vídeo Visual perception Color image processing Signal detection Signal processing Watermarking Blind watermarking scheme Color image watermarking Detection performance Image watermarking systems Significance coding Visual detection thresholds Visual qualities Wavelet domain Percepció visual Perceptual masks in the wavelet domain for color image watermarking