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Fourth International Conference on Information, Communications and Signal Processing, 2003 and the Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint
In this paper, we introduce a robust and secure digital signature scheme for image content authentication, by integrating content feature extraction, watermarking, cryptographic hashing, and digital signature into a unified framework. Given an image, a cryptographic signature is robustly generated based on extracted invariant features and then embedded into the DCT coefficients as watermarks. Quantization is applied to both robust feature extraction and watermarking. Simulation results furtherdoi:10.1109/icics.2003.1292599 fatcat:kgzmdsp7y5cijinvqy33loduma