Blind restoration of a motion-blurred image is a long-standing and challenging inverse problem.In order to estimate motion blur kernel(MBK) accurately and obtain a high-quality restoration image,a regularization-based multi-constraint blind restoration method for motion-blurred images is proposed.First,in order to extract the large-scale edges from the image accurately,a sparse image smoothing method,based on gradient selection,is proposed.Then,in the MBK estimation step,based on the inherent properties of ...