Blind restoration of motion image always is a challenging problem in image processing, the paper, in view of the characteristic of motion image, puts forward a algorithm of blind restoration of motion image with good robustness and preserving image details and texture characteristic efficiently. The algorithm applys Richardson - Lucy filter based on the maximum - likelihood function during image restoration. It can restore efficiently a motion blurred image without any prior knowledge as long as the type of blur is known, its applicability for processing motion blurred images has a more wide r...