We present the DigiCoal toolbox that is an integrated set of numerical functions written in Matlab, dedicated to analyse 3D computed tomography (CT) images of coal and reconstructing representative digital models. The design is based on a comprehensive framework: CT image pre-processing, statistics extraction, digital coal modelling and structural analysis. This paper offers an overview of the structure and techniques used in the creation of the toolbox, together with code snippets and examples.

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