An Image Adaptive Gray-scale Watermark Embedding and Extracting Algorithm Based on Visual System

In order to design an image watermarking algorithm with high robustness,through the analysis of watermark embedding process,extracting process and performance,this paper presents a new scheme of Image adaptive Gray-scale Watermark Embedding and Extracting. After analyzing the characteristics of multiresolution of the two-dimension discrete wavelet transform,by using luminance sense and contrast se…