The extracted watermark image, wa#39;(x, y), is obtained by IFHT of the 64agt;alt;64 Hadamard coefficients matrix using equation (2). IV EXPERIMENT RESULTS AND DISCUSSIONS The experiment for the watermarking system is performed using the MATLAB 6. ... However the simplicity of the FHT offered a significant advantage over the commonly used DCT and DWT techniques, in terms of ... REFERENCES [I] R. G. van Schyndel, A. Z. Tirkel, and C. F. Osborne, aA digital watermark, aquot; Proc.