matlabf非常好基于Contourlet变换的水印算法.与小波变换不同的是Contourlet变换采用类似于线段（contoursegment的基得到一种多分辨、局部化、方向性的图像表示。水印信号通过基于内容的乘性方案加载到Contourlet 变换系数-matlabf very good Contourlet Transform-based watermarking algorithm. and wavelet transform is different Contourlet trans

jmf的入门级小程序，可以接收麦克风的音频信号-JMF small entry-level procedures, the microphone can receive audio signals

Android开发应用 用于测试环境中可连接的wifi信号强度。显示的数字越小表示信号强度越高 。-Android application development for wifi signal strength test environment can be connected. The smaller the number, the higher the display signal strength