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Mural image color restoration method and device, storage medium and computer equipment

An image and mural technology, applied in the field of mural restoration, to maintain the structural information, improve the effect, and enhance the effect of color

Active Publication Date: 2020-09-04
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the effect of color restoration of grotto murals needs to be further improved

Method used

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  • Mural image color restoration method and device, storage medium and computer equipment
  • Mural image color restoration method and device, storage medium and computer equipment
  • Mural image color restoration method and device, storage medium and computer equipment

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Embodiment Construction

[0051] The present application will be further introduced below in conjunction with the accompanying drawings and embodiments.

[0052] In the following introduction, the terms "first" and "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance. The following description provides multiple embodiments of the present invention, and different embodiments can be replaced or combined in combination, so this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment contains features A, B, C, and another embodiment contains features B, D, then the application should also be considered to include all other possible combinations containing one or more of A, B, C, D Although this embodiment may not be clearly written in the following content.

[0053] The following description provides examples, and does not limit the scope,...

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Abstract

The invention provides a mural image color restoration method and apparatus, a storage medium and a computer device. The method comprises the steps of obtaining a to-be-restored mural image and a reference mural image; extracting color features of the mural image to be restored and the reference mural image; according to the color features of the to-be-restored mural image and the reference muralimage, global color restoration is carried out on the to-be-restored mural image through the maximum mean value difference constraint, and a first color restoration image is generated; performing local color restoration on the first color restoration image through Markov random field constraints to generate a second color restoration image; minimizing the Euclidean distance between the second color restoration image and the mural image to be restored to obtain a third color restoration image; and performing noise suppression processing on the third color restoration image. According to the method, original structure information in the mural image can be effectively kept, the overall restoration effect on fading and discoloring areas is good, and the grotto mural color restoration effect isimproved.

Description

technical field [0001] The present invention relates to the field of mural painting restoration, in particular to a mural image color restoration method, device, storage medium and computer equipment. Background technique [0002] Grotto murals are paintings drawn by the ancients on the walls of caves. They are one of the greatest and most glorious historical and cultural heritages of mankind. Through these murals, one can fully understand ancient Buddhist thoughts and valuable information and historical clues in multidisciplinary fields such as Chinese traditional culture, history, geography, and humanities. [0003] For a long time, due to the influence of factors such as the environment, the manufacturing materials of murals, and the mineral composition of the grotto walls to which murals are attached, a large number of existing mural images have experienced degradation and qualitative changes. Among them, the more serious and difficult problem is the fading and discolor...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T7/90G06N3/04G06N3/08
CPCG06T7/90G06N3/084G06T2207/10024G06T2207/20081G06T2207/20084G06N3/045G06T5/70
Inventor 徐志刚尹文玉朱红蕾
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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