相位相关算法，用来进行图像拼接。对信息量较大的图像拼接效果较好，例如指纹。原理简单，但是要求两幅拼接图像有较大的重合部分。-Phase correlation algorithm for image mosaic. The amount of information the image mosaic effect more better, such as fingerprints. The principle is simple, but requires two pieces of mosaic image have a large overlap par