sunsnchronous

使用傅里叶梅林变换进行图像配准，抗旋转、平移和缩放~(Using Fourier Mellin Transform Image Registration)

code give you discrete points along the curve

用MATLAB画一个弯曲的圆柱 思想：把圆柱按轴线分若干段，在每个断面画圆，圆的法线就轴线的切向方向。柱面画若干平行于轴线的线条，其中用到平行单位矢量点积等于1，不平行的结果是[-1，1）。 (MATLAB painting with a cylindrical curved thinking: the cylinder axis by a number of sub-paragraph in each section drawcircle, round on the normal axis of the tangential direction. Painted a number of cylindrical axis parallel to the lines, which use a parallel unit vector point plot equal to 1, the result is not parallel to [-1,1).)

hough变换，matlab编程。Hough变换是一种使用表决原理的参数估计技术。其原理是利用图像空间和Hough参数空间的点－线对偶性，把图像空间中的检测问题转换到参数空间。通过在参数空间里进行简单的累加统计，然后在Hough参数空间寻找累加器峰值的方法检测直线。(hough transform, matlab programming. Hough transform is a vote on the principle of using a parameter estimation techniques. The principle is the point of the image space using the Hough parameter space and line- duality converting the detection problem in the image space to the parameter space. By a simple statistical accumulated in the parameter space, and then in the Hough parameter space to find a method of detecting the peak accumulator line.)

非常有用的经验模态分解绘图程序，包含源文件与图(Empiricial Mode Decomposition (Hilbert-Huang Transform))

说明：  光子晶体光纤中空气孔分布均匀时，计算光子晶体光纤的模式有效折射率(The effective RI of the mode propagating in PCF)

基于MATLAB的数字滤波器的设计，有例子可参考学习(MATLAB-based design of digital filters, there are examples for reference)

数字信号调制动态演示系统，包含AM,PM,FM等多种演示，运行界面操作简单。(welcome to downloads this code !thank you!)

一种基于DCT变换的图像水印算法，非常适合研究水印的人们共同学习，共同进步。(DCT-based image watermarking algorithm)

对信号进行傅里叶变换，并绘出频谱图，功率谱，对数谱等。然后对信号进行反傅里叶变换恢复出原始信号，并绘出其各种谱图(The Fourier transform of the signal, and plot the frequency spectrum, power spectrum, the number spectrum. And inverse Fourier transform to recover the original signal and plot its various spectrum signal)