graycomatrix

利用matlab实现了fft和ifft算法，并给出了利用fft算法解决微分方程的问题的方法。(Fft using matlab achieved and ifft algorithms, and is given the use of fft algorithm to solve the differential equation problem.)

三维激光点集及处理的matlab程序。。(And the processing procedures of MATLAB 3D laser point set.. )

这是一个关于matlab的课件，里面有几个小例子，可供参考！(This is a study on matlab courseware, which has several small example is available for reference!)

说明：  该程序是《数字信号处理上机实验》，有详细的代码和实现原理(The program is a &quot digital signal processing experiment on the computer&quot , a detailed code and implementation principles)

Runge-Kutta programme solving ODE. Not using solver but equations ste-by-step. Rayleigh-Plesset.

How to design antenna

add all prime num smaller than n and this is a simple code run by windows cmd

方波信号生成程序，可对方波信号的复制和频率进行设置，输出信号准确稳定(to creat a square wave )

数字水印图像的攻击测试 包括滤波、剪切、添加噪声、jepg压缩攻击等等(Attack test digital watermarking images, including filtering, cropping, adding noise, jepg compression attack, etc.)

利用matlab实现图片的编辑，图像的亮度调节，缩小和放大，格式的转换等。(Using matlab realize image editing, image brightness adjustment, zoom in and out, format conversion and so on.)