Tamper Detection with Self-Correction Hybrid Spatial-DCT Domains Image Authentication Technique

The development of effective image authentication techniques is of remarkably growing interest. Some recently developed fragile, semi-fragile/robust or hybrid-watermarking algorithms not only verify the authenticity of the watermarked image but also provide self-reconstruction capabilities. However, several algorithms have been reported as vulnerable to various attacks, especially blind pattern matching attacks with insufficient security. In this paper, we propose a new blind dual-domain selfembedding watermarking scheme with more secure embedding processes of the image’s blocks fragile signatures and robust approximations and more reliable local alterations detection with auto-correction capabilities while surviving normal image content preserving operations.