A Wavelet-Based Digital Watermarking using Subband Adaptive Thresholding for Still Images”, microCAD 2004

Abstract – We present a robust watermarking method for still images using a discrete wavelet transform. The proposed scheme makes use of the image properties in order to make the watermark less perceptible to the HVS. The watermark is embedded in the coefficients of all subbands (except the LL subband), using a subband-adaptive thresholding scheme. We compare the performance of the proposed method with the performance of another watermarking scheme based on the discrete wavelet transform. Simulation results prove the robustness and validity of the watermarking technique proposed herein