文件给出了matlab语言进行，对二值图像先用sobel 算子找出边缘，再用hough变换找出圆的圆心和半径的程序，并附图像和解释！-documents given Matlab language, the binary image segmentation using the operator to identify the edge then Hough transform to identify the center of a circle and the circle radius of

对音频信号分帧加窗,对每帧进行三阶小波变换,取其逼近系数平均值(一般为零).在此嵌入二值图像 并有对潜入水印信号进行盲检,恢复其嵌入水印-Sub-frame of the audio signal increases the Hamming window for each frame impletment third-order wavelet transform, whichever is close to the average coefficient (usually zero). a

简单的混沌加密，在网易云课堂听课，做的笔记，简单的几个混沌加密，数字水印混沌加密，混沌加密生成二值图像、灰度图像、RGB图像(Simple chaos encryption, in the netease cloud class, take notes, a few simple chaos encryption, digital watermark chaos encryption, chaos encryption generated binary image, gray image, RG