滤波器(用于处理数字图像,包括高通和低通两种模式，类型有理想，巴特沃斯，高斯三种)。-Filter（Use HPF or LPF which include Ieal ，Butterworth ，Gauss for Digital Image Processing (Frequency Field).）

BCB Lowpass Filtering, Highpass Filtering and Edge Detection-BCB Lowpass Filtering, Highpass Filtering and Edge Detection

本程序为高通滤波的程序代码，除了单纯的对图像进行滤波，也可以进一步进行高通滤波融合，从而获得较好的图像融合结果。-The procedures for the high-pass filtering of the program code, in addition to a simple image filtering can also be further integration of the high-pass filter to obtain a better image fusion.

实现图像的二阶巴特沃斯(Butterworth)低通、高通滤波器，高斯低通、高通滤波器-Butterworth LPF、Butterworth HPF、Gaussian LPF、Gaussian HPF