Titlebook: Digital Watermarking; First International Hyoung Joong Kim Conference proceedings 2003 Springer-Verlag Berlin Heidelberg 2003 Information.

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尽忠

开头

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外面

A Multi-user Based Watermarking System with Two-Security-Level Keysnly in the host image, and only the user with the first-class key can extract the original watermark directly; other users with the second-class keys can only extract the shadow watermarks. The watermark can also be obtained by combining all the shadow watermarks.

GULF

Optimal Detection of Transform Domain Additive Watermark by Using Low Density Diversitymains a problem due to the inaccurate estimation of actual noise distribution. In this paper, a hybrid watermark with low density diversity is proposed. By accurately estimating the noise shape from diversity, the detector is noise adapted and optimal detection will be achieved. The trade-off caused by this diversity is negligible.

夸张

The Design and Application of DWT-Domain Optimum Decodersse detection rate. Compared with other domain decoders, the proposed DWT-domain decoder has more flexibility in constructing new watermarking algorithms by using visual models that have varying spatial support.

archaeology

A New Blind Watermarking Technique Based on Independent Component Analysis employed for blind watermark extraction without requiring the original image. The presented technique has been successfully evaluated and compared with other wavelet-based blind watermarking techniques against the most prominent attacks, such as JPEG and JPEG2000 compression and quantization.

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