Technology of Graphic & Image
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1900-1905

Enhanced edge structure image inpainting based on piecewise adaptive algorithm

Lyu Fua,b
Zhang Wenlia
a. School of Software, b. Dept. of Basic Education, Liaoning Technical University, Huludao Liaoning 125105, China

Abstract

Aiming at the problems of texture transition extension and edge structure discontinuity in the repair of underground coal rock images by exemplar-based image inpainting techniques, this paper proposed a piecewise adaptive image inpainting algorithm with enhanced edge structure. The algorithm introduced ISEF-based data items and isoillumination line curvature information into the Criminisi algorithm to build a new priority function, which solved the problem of improper inpaint order. Then, it adaptively selected the sample block size by using the region types divided by the local variance characteristics and information entropy, which solved the edge preservation problem. Finally, it conducted inpainting experiments on commonly used test images and coal rock images of the Mengcun coal mine. Compared with the traditional Criminisi method, the average PSNR of the algorithm were increased by 0.37 dB and 1.33 dB, and the average SSIM were increased by 0.002 3 and 0.002 7, respectively. The experimental results show that the algorithm has a good inpainting effect on images with complex texture structure information, which lays a foundation for the restoration of coal wall images.

Foundation Support

国家自然基金青年基金项目(51904144)
国家自然基金资助项目(51874166,51974145)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2022.09.0475
Publish at: Application Research of Computers Printed Article, Vol. 40, 2023 No. 6
Section: Technology of Graphic & Image
Pages: 1900-1905
Serial Number: 1001-3695(2023)06-048-1900-06

Publish History

[2023-01-02] Accepted Paper
[2023-06-05] Printed Article

Cite This Article

吕伏, 张文丽. 强化边缘结构的分段自适应图像修复算法 [J]. 计算机应用研究, 2023, 40 (6): 1900-1905. (Lyu Fu, Zhang Wenli. Enhanced edge structure image inpainting based on piecewise adaptive algorithm [J]. Application Research of Computers, 2023, 40 (6): 1900-1905. )

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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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