Segmentation of petrographical images of marbles
Computers & Geosciences
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Computers & Geosciences
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Fundamenta Informaticae - Special issue on mathematical morphology
Fast color texture recognition using chromaticity moments
Pattern Recognition Letters
Morphological Image Analysis: Principles and Applications
Morphological Image Analysis: Principles and Applications
Modelling and segmentation of colour images in polar representations
Image and Vision Computing
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ICIAR'06 Proceedings of the Third international conference on Image Analysis and Recognition - Volume Part II
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IbPRIA'05 Proceedings of the Second Iberian conference on Pattern Recognition and Image Analysis - Volume Part II
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IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews
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This paper presents a methodology mainly based on mathematical morphology to segment and classify colour images of polished samples of marbles at the macroscopic scale. The distinct textural regions are segmented through a watershed-based procedure, and the over-segmentation problem is surpassed with the merging of adjacent regions according to criteria based on the analysis of alternative gradients obtained in grey and colour images. The classification of the elementary textural units in three classes (vein, background and transition) is performed with a morphological partitioning method of feature space. The evaluation and analyses of the methodology and alternatives presented are performed on a set of polished Portuguese marbles.