利用matlab针对图像进行马氏距离计算 ,包括压缩比、运行时间和计算复原图像的峰值信噪比,基于分段非线性权重值的Pso算法。- Using matlab to calculate the Mahalanobis distance for the image, Including compression ratio, image restoration computing uptime and peak signal to noise ratio, Based on piecewise nonl