期刊論文
| 學年 | 101 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2013-07-01 |
| 作品名稱 | An Adaptive Reversible Image Watermarking Scheme Based on Integer Wavelet Coefficients |
| 作品名稱（其他語言） | |
| 著者 | Chen, Chien-Chang; Jiun, Zeng-Chuang, Hsu, Chien-Hsiang |
| 單位 | 淡江大學資訊工程學系 |
| 出版者 | Oulu: Academy Publisher |
| 著錄名稱、卷期、頁數 | Journal of Computers 8(7), pp.1677-1682 |
| 摘要 | This 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 between central ordered pixel and other pixels in each block. Largest difference in each block determines the embedded quantity in each difference. Experimental results show that the proposed adaptive block size scheme has higher capacity and quality ratio than previous works. |
| 關鍵字 | Reversible image watermarking;integer wavelet transform;difference expansion;adaptive block size |
| 語言 | en |
| ISSN | 1796-203X |
| 期刊性質 | 國外 |
| 收錄於 | EI |
| 產學合作 | |
| 通訊作者 | Chen, Chien-Chang |
| 審稿制度 | 是 |
| 國別 | FIN |
| 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/987654321/92818 ) |