教師資料查詢 | 類別: 期刊論文 | 教師: 陳建彰 Chen, Chien-chang (瀏覽個人網頁)

標題:Difference-Expansion Based Reversible and Visible Image Watermarking Scheme
學年105
學期2
出版(發表)日期2017/03/01
作品名稱Difference-Expansion Based Reversible and Visible Image Watermarking Scheme
作品名稱(其他語言)
著者Chien-Chang Chen, Yao-Hong Tsai, Hsin-Cheng Yeh
單位
出版者
著錄名稱、卷期、頁數Multimedia Tools and Applications 76(6), p.8497-8516
摘要A reversible image watermarking scheme recovers the original cover image after extracting the embedded watermarks. A visible image watermarking scheme embeds watermarks to create a visible watermark effect on the cover image. A general reversible image watermarking scheme embeds invisible watermarks. This paper presents a reversible and visible image watermarking scheme that uses a conventional difference-expansion method. The cover image is first segmented to non-overlapped kk blocks. Each block is then applied to two watermarking schemes; a difference-expansion based invisible watermarking scheme and a visible watermarking scheme to embed one watermark bit. Exceeding numbers, larger than 255 or smaller than 0, generated from the difference-expansion method require being recorded for a lossless recovery. Experimental results show that the proposed scheme embeds visible watermarks with few recorded exceeding numbers. However, not recording any exceeding numbers still results in a high similarity of extracted watermark image and good quality of recovered cover image.
關鍵字Reversible watermark, visible watermark, difference expansion, partition strategy
語言英文
ISSN
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別荷蘭
公開徵稿
出版型式,電子版
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