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Mathematical Problems in Engineering
Volume 2016, Article ID 6104196, 5 pages
http://dx.doi.org/10.1155/2016/6104196
Research Article

A Precise-Mask-Based Method for Enhanced Image Inpainting

1School of Information Science and Technology, Northwest University, Xi’an, Shaanxi 710127, China
2Key Laboratory of Space Active Opto-Electronics Technology, Shanghai Institute of Technical Physics of the Chinese Academy of Science, Shanghai 200083, China
3Department of Physics, Emory University, Atlanta, GA 30322, USA

Received 5 January 2016; Accepted 9 February 2016

Academic Editor: Maria Gandarias

Copyright © 2016 Wanxu Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Mask of damage region is the pretreatment step of the image inpainting, which plays a key role in the ultimate effect. However, state-of-the-art methods have attached significance to the inpainting model, and the mask of damage region is usually selected manually or by the conventional threshold-based method. Since manual method is time-consuming and the threshold-based method does not have the same precision for different images, we herein report a new method for automatically constructing the precise mask by the joint filtering of guided filtering and smoothing. It can accurately locate the boundary of damaged region in order to effectively segment the damage region and then greatly improves the ultimate effect of image inpainting. The experimental results show that the proposed method is superior to state-of-the-art methods in the step of constructing inpainting mask, especially for the damaged region with inconspicuous boundary.