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:DCT-Based Zero Replacement Reversible Image Watermarking Approach
學年97
學期1
出版(發表)日期2008/11/01
作品名稱DCT-Based Zero Replacement Reversible Image Watermarking Approach
作品名稱(其他語言)
著者Chen, Chien Chang; Kao, D. Sheng
單位淡江大學資訊工程學系
出版者Kumamoto: ICIC International
著錄名稱、卷期、頁數International Journal of Innovative Computing, Information and Control 4(11), pp.3027-3036
摘要Reversible watermarking recovers an original image from a watermarked image by extracting the embedded watermarks. This work presents a reversible image watermarking approach that works on quantized DCT coefficients, implying that the original quantized image can be recovered perfectly after watermark extraction. The concept of zero replacement reversible watermarking is presented. Two parameters adjustment rules, ZRE and ZRX, are first proposed to embed and extract one bit to DCT coefficients, respectively. Additionally, the CA rule is presented to prevent confusion during embedding and extraction. Watermark embedding and extracting algorithms based on these three rules are then proposed. Experimental results indicate that the quality of watermarked image is very good, and that the proposed approach can also identify maliciously attacked regions efficiently. The proposed approach is also compared with other watermarking methods, demonstrating that the proposed approach works well.
關鍵字Reversible watermarking;DCT;Quantization
語言英文
ISSN1349-4198
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別日本
公開徵稿
出版型式紙本
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