Image Adaptive Blind Watermarking Algorithm Based on Wavelet Transform
一种基于小波变换的图像自适应盲水印算法

According to the characteristics of Human Visual System(HVS) and the property of multi-resolution of wavelet transform,present a kind of image digital watermarking algorithms based on wavelet transform.In the LL subband of the original image we adaptively embed a blind watermarking.When the watermarking is extracted or checked,we need not refer to the original image or original watermarking.In this way,we bring totally blind check into realization.Compared with other algorithms raised the strength of the watermark,and give attention to the capacity of the watermark.The algorithms computes in brief,is easy to actualize.The result of the experiment shows that this scheme has higher quality of robustness and security against attacks and is applicable to the copyright protection of the digital picture.