此代码基于opencv2.2,实现的功能：在频域中对图像进行低能滤波处理，输出一幅灰度图，一幅傅氏实部图，一幅虚部图-This code is based on opencv2.2, to achieve the function: low frequency domain filtering of image processing, output a grayscale, a real part of Fourier maps, an imaginary figure

同态滤波去噪，把频率过滤和灰度变换结合起来的一种图像处理方法，它依靠图像的照度/ 反射率模型作为频域处理的基础，利用压缩亮度范围和增强对比度来改善图像的质量。使用这种方法可以使图像处理符合人眼对于亮度响应的非线性特性，避免了直接对图像进行傅立叶变换处理的失真。-Homomorphic filtering noise, the frequency filter and the gradation conversion processing method combining an image, wh

基于VC6.0和opencv的频域低通滤波器程序，实现了低通滤波的基本功能-Opencv based on VC6.0 and low-pass filter in the frequency domain procedures to achieve the basic functions of the low-pass filter

gaobor滤波工具 先转到频域再转回时域,不错的源码 很好用(Gaobor filtering tools to return to frequency domain to time domain, a good source is in good condition)