Single-shot blind uniform motion deblurring with ringing reduction

ABSTRACT

In this paper, we have proposed a blind motion deblurring algorithm that comprises the estimation of the motion blur parameters (length and angle) in a modified cepstrum domain with a blind no-reference image spatial quality evaluator (BRISQUE) used for the tuning of point spread function (PSF) parameters. Ringing artifacts are generated during the deblurring process. In this paper, the modified R–L (Richardson–Lucy) algorithm with weight calculation based on graphcut is presented to obtain good estimates of the unblurred image with ringing reduction. The method involves the selection of different weights for edges and smooth regions such that the ringing effect over R–L iterations can be reduced. A newly proposed method has been tested on various natural images with a motion blur of different length and degrees. A comparison with state-of-the-art methods proves that the proposed technique achieved better results in terms of different quality measures such as SSIM, FSIM and PSNR and can be greatly beneficial for deblurring purpose.

KEYWORDS:

• Image deblurring
• image restoration
• motion blur
• PSF estimation
• Richardson–Lucy algorithm
• ringing artifacts

Note

All images have been obtained from the Desktop Nexus Wallpaper Image Databse, which can be accessed through the following link: https://www.desktopnexus.com/ © 2016 Desktop Nexus. All Rights Reserved.

Disclosure statement

No potential conflict of interest was reported by the authors.