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

Wenfeng Zhu; Xiaoxia Wan; Junfeng Li; Chan Li; Guonian Jin; Qiang Liu

doi:10.1117/1.JEI.26.1.011002

18 October 2016 Nondestructive pigment size detection method of mineral paint film based on image texture

Wenfeng Zhu, Xiaoxia Wan, Junfeng Li, Chan Li, Guonian Jin, Qiang Liu

Author Affiliations +

Funded by: Natural Science Foundation of China, National Basic Research Program of China, National Basic Research Program of China (973 Program), Nature Science Foundation of Hubei Province in China, Fundamental Research Funds for the Central Universities

Journal of Electronic Imaging, Vol. 26, Issue 1, 011002 (October 2016). https://doi.org/10.1117/1.JEI.26.1.011002

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.

Citation Download Citation

Wenfeng Zhu, Xiaoxia Wan, Junfeng Li, Chan Li, Guonian Jin, and Qiang Liu "Nondestructive pigment size detection method of mineral paint film based on image texture," Journal of Electronic Imaging 26(1), 011002 (18 October 2016). https://doi.org/10.1117/1.JEI.26.1.011002

Published: 18 October 2016

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