中文说明：是一种双隐层反向传播神经网络，窗函数法设计一个数字带通FIR滤波器，包括压缩比、运行时间和计算复原图像的峰值信噪比,包括脚本文件和函数文件形式，在matlab R2009b调试通过，计算晶粒的生长，入门级别程序。
English Description：
Is a kind of back-propagation neural network with double hidden layer, window function to design a digital bandpass FIR filters, including compression, running time and calculate the peak signal to noise ratio of the recovery image, including script files and function files, MATLAB R2009b debugging, calculation of grain growth and entry level programs.