将原图像看做是自相关及其功率谱是各向同性的一阶马尔可夫过程,采用基于方向微分的运动模糊方向鉴别方法，对运动模糊图像进行方向性的高通滤波(方向微分),当滤波方向为运动模糊方向时 ,由于此方向模糊图像对应的高频成分最少,高通滤波(方向微分)使模糊图像能量损失最大,得到的微分图像灰度值（双线性插值）之和必然最小.所以方向微分得到的图像灰度值之和中的最小值对应的方向即为运动模糊的方向-The original image as is the autocorrelation and power spectrum is isotropic first-order Markov process, the use of motion blur based on the direction of the direction of the differential method of identifying the direction of motion blurred images of high-pass filter (the direction of derivative) When the filter direction is the direction of motion blur, due to the blurred image corresponding to the direction of high frequency components at least, high pass filter (the direction of derivative) to the maximum energy loss of blurred images, the resulting differential image intensity value (bilinear interpolation) of and the inevitable minimum. So the direction of differential image intensity values ​ ​ obtained and the minimum in the corresponding direction is the direction of motion blur