Application of Digital Processing in Relic Image Restoration Design
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Application of Digital Processing in Relic Image Restoration Design Hui Tang2 · Guohua Geng1 · Mingquan zhou3 Received: 5 June 2019 / Revised: 29 September 2019 © Springer Science+Business Media, LLC, part of Springer Nature 2019
Abstract Cultural relic is the carrier of human historic culture, which can reflect the cultural and social environment, but cultural relics as a material will be damaged over time. Before the advent of computer technology, the damaged cultural relics would not be repaired due to cost. Computer vision technology has been applied to the restoration of cultural relics, mainly for the virtual restoration of damaged cultural relics images. This paper briefly introduced the Criminisi image restoration algorithm and the structure tensor used to improve the algorithm in the digital cultural relics image restoration. A damaged cultural relics image and a complete image which was damaged by human were repaired respectively using the classical Criminisi image restoration algorithm and the improved structure tensor based repair algorithm on MATLAB software. The results showed that the Criminisi image restoration algorithm could be used to repair the damaged images of ancient fabrics. It was found that the classical image restoration algorithm had some shortcomings, such as inappropriate texture structure, obvious repair marks and addition of redundant information, but the improved algorithm effectively avoided the above shortcomings. The peak signal to noise ratio (SNR) of the complete image which was damaged by human was compared objectively, and it was found that the improved algorithm had better restoration performance. Keywords Digital · Relic restoration · Criminisi algorithm · Structure tensor
* Hui Tang [email protected] 1
School of Information and Technology, Northwest University, Xi’an 710127, Shaanxi, China
2
Xi’an University of Finance and Economics, Xi’an 710100, Shaanxi, China
3
College of Information Science and Technology, Beijing Normal University, Beijing 100875, China
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Sensing and Imaging
(2020) 21:6
1 Introduction As an ancient civilized country with 5000 years of history, China has not a few ancient cultural relics reflecting history and culture. Besides porcelain, silk is also very famous in ancient times, and the Silk Road is a great proof [1]. There are many kinds of silk, and the designs and patterns on silk are various. The patterns on ancient fabrics reflect the culture and beliefs of various periods, suggesting very high historical values. However, fabrics loses their original appearance as time goes on because they are difficult to preserve, and especially the permanent damage can greatly reduce their historical values, which is a great loss of civilization [2]. Before the advent of computer technology, most of the damaged cultural relics were cleaned up and maintained rather than repaired. Computer image restoration technology was immediately applied to the restoration of cultural relics after emergence. Computer ima
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