包括最后计算压缩图像的峰值信噪比和压缩效果的源码,利用最小二乘法进行拟合多元非线性方程，一种基于多文档得图像合并技术。- Including the final calculation of the compressed image peak signal to noise ratio and compression of the source, Multivariate least squares fitting method of nonlinear equations, Based on