Matlab_基于FFT的图像配准 粗估算两幅图像之间的平移差，返回水平方向平移差到xtran，返回垂直方向平移差到ytran 用在图像配准中的粗匹配中，对噪声、图像中物体发生运动等极为鲁棒！-FFT-based Matlab_ Image Registration rough estimate of the translation between two images, poor, poor translation to return to the horizontal direct