期刊論文
| 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 | en |
| ISSN | 0164-1212 |
| 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 | USA |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/55162 ) |