Image histogram as a tool for a coal stream homogeneity evaluation

The paper presents selected results of the preliminary laboratory research on the application of histogram analysis to the problem of coal stream homogeneity evaluation. This is an important problem of industrial coal mine output stream quality testing. Image acquisition is fast and cheap, but needs...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 427; no. 1; pp. 12023 - 12030
Main Authors Heyduk, A, Joostberens, J, Nowrot, A, Pielot, J, Fabiańczyk, K
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 26.09.2018
Subjects
Coal mines
Evaluation
Gangue
Histograms
Homogeneity
Image acquisition
Image quality
Schist
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Summary:The paper presents selected results of the preliminary laboratory research on the application of histogram analysis to the problem of coal stream homogeneity evaluation. This is an important problem of industrial coal mine output stream quality testing. Image acquisition is fast and cheap, but needs complex analysis techniques. Histogram analysis can be considered to be one of them. There has been proposed a distance measure, and there have been presented analysis results which proved an ability to detect gangue, rock, schist, and even wooden block contamination of the homogenous coal stream. The method needs further improvement and comprehensive analysis of other available options of the RGB-to-grayscale conversion and of histogram comparison to make it more selective. These further research directions have also been described in the paper.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/427/1/012023