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Abstract:This paper gives the choice of watermark domain in presence of the lossy compression. It is assumed that separation of watermark embedding domain from the processing (compression or decompression) domain improves the embedding capacity of the image. Improvement in the embedding capacity ultimately results into the improved robustness of the technique. We worked mainly with [...]

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Quality is subjective. Quality can be objectified by the industry standards process represented by such consumer items as compact disc (“CD”) and digital versatile disc (“DVD”). What is lacking is a means for not only associating the creation of valued intangible assets and extensions of recognition but establishing responsibility for copies that may be digitized [...]

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Figure 1. Embedding and Retrieval of the watermark

ABSTRACT

In this paper a novel algorithm based on wavelet transform is proposed for digital image watermarking. The algorithm is primarily combinations of TWT (discrete wavelet transform) and modified throsholding scheme to search exact coefficient for watermark embedding. The proposed algorithm gives good results of watermark retrieval also [...]

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