利用matlab针对图像进行马氏距离计算 ,表示出两帧图像间各个像素点的相对情况，包括最小二乘法、SVM、神经网络、1_k近邻法。- Using matlab to calculate the Mahalanobis distance for the image, Between two images showing the relative circumstances of each pixel, Including the least squares method, the SVM, neural networks, 1 _k neighbor method.