数字水印\吴伟毕业设计论文.doc ........\程序\a-angle.bmp ........\....\a-cut.bmp ........\....\a-filter.bmp ........\....\a-jpeg.jpg ........\....\attack.m ........\....\image.jpg ........\....\in.m ........\....\nc.m ........\....\out.m ........\....\psnr.m ........\....\wimage.bmp ........\....\wmark.JPG ........\....\wwmark.jpg ........\....\华北科技学院.jpg ........\程序 数字水印