講演抄録/キーワード |
講演名 |
2010-09-10 16:10
Watermarking-Based Method for Image Authentication and Image Recovery ○Jose Antonio Mendoza Noriega・Brian M. Kurkoski(Univ. of Electro-Comm.)・Mariko Nakano Miyatake(IPN) ISEC2010-48 |
抄録 |
(和) |
In this paper an image authentication algorithm is proposed where the modified areas in an image are detected, in addition an approximation of the original image, called digest image $C_{dig}$, is recovered. Two different watermarks are used. One semi-fragile watermark $w_1$ is used for authentication phase. The other, digest image $C_{dig}$ is compressed using an arithmetic code, then redundancy is added by applying BCH error correcting code (ECC) resulting $w_{dig}$. Finally, both watermarks are embedded in the integer wavelet transform (IWT) domain. The proposed scheme is evaluated from different points of view: watermark imperceptibly, payload, accuracy detection of tamper area and robustness against intentional attacks. Experimental results show the system detects accurately where the image has been modified and the recovered digest image has a good quality. |
(英) |
In this paper an image authentication algorithm is proposed where the modified areas in an image are detected, in addition an approximation of the original image, called digest image $C_{dig}$, is recovered. Two different watermarks are used. One semi-fragile watermark $w_1$ is used for authentication phase. The other, digest image $C_{dig}$ is compressed using an arithmetic code, then redundancy is added by applying BCH error correcting code (ECC) resulting $w_{dig}$. Finally, both watermarks are embedded in the integer wavelet transform (IWT) domain. The proposed scheme is evaluated from different points of view: watermark imperceptibly, payload, accuracy detection of tamper area and robustness against intentional attacks. Experimental results show the system detects accurately where the image has been modified and the recovered digest image has a good quality. |
キーワード |
(和) |
Watermarking / recovery capability / DCT / integer wavelet transform / BCH error-correction / / / |
(英) |
Watermarking / recovery capability / DCT / integer wavelet transform / BCH error-correction / / / |
文献情報 |
信学技報, vol. 110, no. 200, ISEC2010-48, pp. 61-65, 2010年9月. |
資料番号 |
ISEC2010-48 |
発行日 |
2010-09-03 (ISEC) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
ISEC2010-48 |