Method and device for deblurring out-of-focus blurred images

摘要

The present application provides a method and a device for deblurring an out-of-focus blurred image: first, a preset blur kernel is used to carry out blurring processing on an input original image to obtain a re-blurred image. The blur amounts of pixels in an edge area of the original image are estimated according to the change of the image edge information in the blurring processing procedure to obtain a sparse blur amount diagram. The blur amounts of pixels in a non-edge area of the original image are estimated according to the parse blur amount diagram to obtain a complete blur amount diagram. Deblurring processing is carried out according to the complete blur amount diagram to obtain a deblurred image. In the method and device provided by the present invention, since a blur amount diagram is obtained based on the change of edge information after image blurring, the blur amount diagram can be more accurate, so that the quality of a deblurred image is improved.