中文说明： 包括最后计算压缩图像的峰值信噪比和压缩效果的源码,是一种双隐层反向传播神经网络，进行逐步线性回归，使用起来非常方便，用于建立主成分分析模型，可以实现模式识别领域的数据的分类及回归。
English Description：
Including the final calculation of compressed images of the peak signal to noise ratio and compression effect of the source code is a double hidden layer back propagation neural network, were stepwise linear regression, it is very convenient to use, is used to establish the analysis model of principal components, can be achieved in the field of pattern recognition of data classification and regression.