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arXiv · 1710.00189

Unsupervised Classification of Intrusive Igneous Rock Thin Section Images using Edge Detection and Colour Analysis

S. Joseph·H. Ujir·I. Hipiny
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Abstract

Classification of rocks is one of the fundamental tasks in a geological study. The process requires a human expert to examine sampled thin section images under a microscope. In this study, we propose a method that uses microscope automation, digital image acquisition, edge detection and colour analysis (histogram). We collected 60 digital images from 20 standard thin sections using a digital camera mounted on a conventional microscope. Each image is partitioned into a finite number of cells that form a grid structure. Edge and colour profile of pixels inside each cell determine its classification. The individual cells then determine the thin section image classification via a majority voting scheme. Our method yielded successful results as high as 90% to 100% precision.

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S. Joseph, H. Ujir, I. Hipiny. 2017-09-30. Unsupervised Classification of Intrusive Igneous Rock Thin Section Images using Edge Detection and Colour Analysis. https://doi.org/10.1109/icsipa.2017.8120669

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