Utilisation of the image analysis method for the detection of the morphological anisotropy of calcite grains in marble |
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Authors: | Boguslaw Obara Alena Kožušníková |
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Affiliation: | (1) Strata Mechanics Research Institute, Polish Academy of Sciences, Reymonta 27, Krakow, PL 30-059, Poland;(2) Institute of Geonics, Academy of Sciences of the Czech Republic, Studentská 1768, Ostrava-Poruba, 708 00, Czech Republic |
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Abstract: | This paper presents the development and utilisation of an automated image processing algorithm for detection and analysis of grains. Using optical polarising microscopy, a set of colored images are collected from an area on a thin section. A filtering operation, using rotation of a morphological alternating sequence filter (based on a structuring element), is used to remove twinning features within individual grains. Filtering is followed by the watershed segmentation technique to determine grain boundaries. The method is used for the identification of calcite grains in marble and the subsequent analysis of morphological anisotropy. |
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Keywords: | Grain boundaries Image processing and analysis Microscopy Morphological anisotropy Rock structure |
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