關鍵字查詢 | 類別:期刊論文 | | 關鍵字:An Adaptive Reversible Image Watermarking Scheme Based on Integer Wavelet Coefficients

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1 101/2 資工系 陳建彰 教授 期刊論文 發佈 An Adaptive Reversible Image Watermarking Scheme Based on Integer Wavelet Coefficients , [101-2] :An Adaptive Reversible Image Watermarking Scheme Based on Integer Wavelet Coefficients期刊論文An Adaptive Reversible Image Watermarking Scheme Based on Integer Wavelet CoefficientsChen, Chien-Chang; Jiun, Zeng-Chuang, Hsu, Chien-Hsiang淡江大學資訊工程學系Reversible image watermarking;integer wavelet transform;difference expansion;adaptive block sizeOulu: Academy PublisherJournal of Computers 8(7), pp.1677-1682This paper presents an integer wavelet coefficients based reversible image watermarking scheme. A reversible image watermarking approach extracts the embedded watermarks from a watermarked image and recovers the watermarked image to the original image simultaneously. The proposed approach first applies the host image to 3-layered integer wavelet transform. Nine subimages are acquired from the 3-layered integer wavelet transform. Each subimage is then segmented to blocks of size 2LX2L, where L is determined by structure of the subimage. Then, reversible watermarks are embedded into differences b
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