Content-Based Digital Signature for Motion Pictures Authentication and Content-Fragile Watermarking
ICMCS '99 Proceedings of the 1999 IEEE International Conference on Multimedia Computing and Systems - Volume 02
Image Authentication Scheme Based on Self-embedding Watermarking
CIARP '09 Proceedings of the 14th Iberoamerican Conference on Pattern Recognition: Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications
Technical Communication: Authentication and recovery of images using multiple watermarks
Computers and Electrical Engineering
Structural digital signature for image authentication: an incidental distortion resistant scheme
IEEE Transactions on Multimedia
Multipurpose watermarking for image authentication and protection
IEEE Transactions on Image Processing
| Hi-index | 0.00 |
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.