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:Adaptive reversible image watermarking scheme
學年99
學期2
出版(發表)日期2011/03/01
作品名稱Adaptive reversible image watermarking scheme
作品名稱(其他語言)
著者Chen, Chien-Chang; Tsai Yao-Hong
單位淡江大學資訊工程學系
出版者New York: Elsevier Inc.
著錄名稱、卷期、頁數Journal of Systems and Software 84(3), pp.428-434
摘要This paper presents an adaptive block sized reversible image watermarking scheme. A reversible watermarking approach recovers the original image from a watermarked image after extracting the embedded watermarks. Without loss of generality, the proposed scheme segments an image of size 2N × 2N adaptively to blocks of size 2L × 2L, where L starts from a user-defined number to 1, according to their block structures. If possible, the differences between central ordered pixel and other pixels in each block are enlarged to embed watermarks. The embedded quantity is determined by the largest difference in a block and watermarks are embedded into LSB bits of above differences. Experimental results show that the proposed adaptive block size scheme has higher capacity than conventional fixed block sized method.
關鍵字Reversible watermarking; Difference embedding; Adaptive block size; LSB
語言英文
ISSN0164-1212
期刊性質國外
收錄於SCI
產學合作
通訊作者Chen, Chien-Chang
審稿制度
國別美國
公開徵稿
出版型式紙本
相關連結
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