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Color reproduction detection and evaluation method of ancient painting prints based on feature interpolation

An evaluation method and printing technology, applied in the field of digitization of cultural relics and color reproduction, can solve problems such as inaccurate color reproduction, achieve the effect of simple and direct method, high calculation efficiency, and accurate data support

Active Publication Date: 2022-04-29
ZHEJIANG UNIV
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Problems solved by technology

There is also the use of the color reproduction degree of the standard color card to measure the color reproduction effect of printed matter, but the color used in ancient paintings has its own characteristics, and the colors in the standard color card often rarely appear in ancient paintings. The color reproduction of painting prints is not accurate

Method used

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  • Color reproduction detection and evaluation method of ancient painting prints based on feature interpolation
  • Color reproduction detection and evaluation method of ancient painting prints based on feature interpolation
  • Color reproduction detection and evaluation method of ancient painting prints based on feature interpolation

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Embodiment Construction

[0071] Due to its rarity, ancient paintings will be subject to some constraints in the process of data collection to printing and publishing reproduction evaluation. Therefore, the present invention only detects the color reproduction difference between the electronic reference sample and the printed sample when ancient paintings are printed and published. and evaluation.

[0072] like figure 1 As shown, the method for detecting and evaluating the color reproduction of ancient painting prints based on feature interpolation in this embodiment includes the following steps:

[0073] S1: as figure 2 shown. This method calls the API function double kmeans(InputArraydata, int K, InputOutputArray bestLabels, TermCriteria criteria, int attempts, intflags, OutputArray centers=noArray()) of openCv 2.1, which is an implementation function of the kmeans clustering algorithm. The parameter data represents the original data set to be clustered, one row represents a data sample, and each...

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Abstract

The invention discloses a method for detecting and evaluating the color reproduction of ancient painting prints based on feature interpolation. The typical color values ​​in the electronic reference samples of ancient paintings are obtained through a clustering algorithm, and the typical color values ​​are made into color block typesetting in the electronic reference samples of ancient paintings. Under the sample, and carry out the printing and proofing under the same printing conditions as the official printing, to obtain the ancient painting printing sample; use a spectrophotometer to measure the color value of the typical color block in the ancient painting printing sample, and calculate the ancient painting electronic reference sample and printing sample. The color difference value of the typical color block; the color difference value between the typical color block of the electronic reference sample of ancient painting and the printing sample is mapped to the pixel of the electronic reference sample of ancient painting through the feature interpolation algorithm. This method can realize the quantitative evaluation of the color reproduction of ancient painting prints with relatively high accuracy, and can meet the demand of targeted quantitative analysis on the color reproduction of ancient paintings.

Description

technical field [0001] The invention belongs to the field of cultural relic digitization and color reproduction, in particular to a method for detecting and evaluating color reproduction of ancient painting prints based on feature interpolation. Background technique [0002] Cultural heritage contains rich historical, artistic and scientific research value, and is an important carrier in cultural heritage. Cultural heritage, especially material cultural heritage such as paintings, requires extremely high fidelity and integrity in the process of inheritance and dissemination. Only when accurate expression can be achieved, users can correctly understand it, and then conduct scientific research, display education and other purposes more accurately. The scientific detection, analysis and evaluation of the color reproduction degree and effect of ancient painting prints is a powerful guarantee to ensure the effective inheritance and dissemination of cultural heritage. [0003] Co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/90G06T5/00G06T3/00G06V10/762G06K9/62G01N21/25G01J3/46G01J3/44
CPCG06T7/0002G06T7/90G01N21/251G01J3/4412G01J3/46G01J2003/4418G06T2207/10024G06F18/23213G06T3/10G06T5/90
Inventor 李丽刁常宇徐海松毛金金叶正男
Owner ZHEJIANG UNIV
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