Adaptive watermarking using pso and fuzzy logic approach

Abstract

Digital Watermarking with PSO and Fuzzy Logic is an attempt to find suitable locations for inserting watermark bits using PSO and Fuzzy Logic, by looking at the surrounding pixels and adaptively adjusting the pixel intensity values to encode the watermark bits. The result obtained in this technique indicate that following adaptive insertion on the pixels after finding location by PSO is even more effective to obtain better fidelity and robustness. The inverse tradeoff between robustness and fidelity is also demising.