An Adaptive Watermarking Process in Hadamard Transform

摘要

An adaptive visible/invisible watermarking scheme is done to prevent the privacy and preserving copyrightprotection of digital data using Hadamard transform based on the scaling factor of the image. The value ofscaling factor depends on the control parameter. The scaling factor is calculated to embedded thewatermark. Depend upon the control parameter the visible and invisible watermarking is determined. Theproposed Hadamard transform domain method is more robust again image/signal processing attacks.Furthermore, it also shows that the proposed method confirm the efficiency through various performanceanalysis and experimental results.