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 en
ISSN
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者
審稿制度 是
國別 NLD
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/112928 )