Special Section on Image Processing for Cultural Heritage

Nondestructive pigment size detection method of mineral paint film based on image texture

[+] Author Affiliations
Wenfeng Zhu, Xiaoxia Wan, Junfeng Li, Chan Li, Guonian Jin, Qiang Liu

University of Wuhan, School of Printing and Packaging Engineering, No. 129 Luoyu Street, Hongshan District, Wuhan 430079, China

J. Electron. Imaging. 26(1), 011002 (Oct 18, 2016). doi:10.1117/1.JEI.26.1.011002
History: Received May 9, 2016; Accepted September 27, 2016
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Abstract.  The existing methods—such as sieving, microscope, light scattering, sedimentation, and electrical induction for pigment size detection—require sampling or scattering the mineral pigments, which will inevitably cause damage to the films painted by mineral pigments. A new detection method based on run length texture analysis is proposed to nondestructively detect the pigment size in the mineral paint film. The films painted by mineral pigments with preknown pigment sizes are contactlessly captured by CCD microscope under diffused light. Gray transform, histogram equalization, and median filtering are implemented to preprocess the captured images, and then the run length texture parameters are extracted from the preprocessed images. A parametric relationship between the extracted parameters and the preknown size is established to predict the pigment size in mineral paint film nondestructively. Burnt carnelian is selected as the sample to verify the feasibility of the proposed method. Results show that the max detection error of the proposed method is 5.548  μm and can be applied to the size detection of the mineral pigments used in mineral paint film.

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Topics

Minerals ; Particles

Citation

Wenfeng Zhu ; Xiaoxia Wan ; Junfeng Li ; Chan Li ; Guonian Jin, et al.
"Nondestructive pigment size detection method of mineral paint film based on image texture", J. Electron. Imaging. 26(1), 011002 (Oct 18, 2016). ; http://dx.doi.org/10.1117/1.JEI.26.1.011002


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