TY - GEN
T1 - Image authentication based on DCT with recovery capability
AU - Noriega, Jose Antonio Mendoza
AU - Kurkoski, Brian M.
AU - Miyatake, Mariko Nakano
AU - Meana, Hector Perez
PY - 2010
Y1 - 2010
N2 - In this paper an image authentication algorithm is proposed where the modified areas in an image are detected, besides an aproximation of the original image, called digest image Cdig, is recovered (recovery capability). Two different watermarks are used. One semi-fragile watermark w1 is used for authentication phase. The digest image Cdig is compressed using an arithmetic code, then redundancy is added by applying BCH error correcting code (ECC) resulting wdig. 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 some non intentional attacks. Experimental results show the system detects accurately where the image has been modified and the recovered digest image has a good quality. The proposed system is robust to noise insertion.
AB - In this paper an image authentication algorithm is proposed where the modified areas in an image are detected, besides an aproximation of the original image, called digest image Cdig, is recovered (recovery capability). Two different watermarks are used. One semi-fragile watermark w1 is used for authentication phase. The digest image Cdig is compressed using an arithmetic code, then redundancy is added by applying BCH error correcting code (ECC) resulting wdig. 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 some non intentional attacks. Experimental results show the system detects accurately where the image has been modified and the recovered digest image has a good quality. The proposed system is robust to noise insertion.
KW - DCT
KW - ECC
KW - IWT
KW - Recovery capability
KW - Semi-fragile watermark
UR - http://www.scopus.com/inward/record.url?scp=79958741084&partnerID=8YFLogxK
M3 - Contribución a la conferencia
AN - SCOPUS:79958741084
SN - 9789604742318
T3 - International Conference on Applied Computer Science - Proceedings
SP - 164
EP - 169
BT - Selected Topics in Applied Computer Science - 10th WSEAS International Conference on Applied Computer Science, ACS'10
T2 - 10th WSEAS International Conference on Applied Computer Science, ACS'10
Y2 - 4 October 2010 through 6 October 2010
ER -