【摘要】 文中提出一种基于小波变换域自适应嵌入数字水印的算法。该方法利用小波多分辨率的特性,结合图像和人眼的特性,首先将一幅有意义的水印图像置乱,然后对置乱后的图像和原图像分别做离散小波变换。根据原图像的显著性,自适应的调整加入水印的强度,最后得到加入水印后的图像。更多还原

【Abstract】 An adaptive algorithm based on wavelet transform is proposed in this paper.This method makes use of mutiresolution and combines with the characters of image and HVS(human visual model.A meaningful watermarking is first scrambled.Next,the scrambled watermarking and original image are then decomposed by discrete wavelet transform.According to the saliency of image the strength of imbedding watermarking adaptively.Finally,achieved is an image in which the watermarking is imbedded.更多还原