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Python based tool for Hough/Radon based EBSD indexing

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Python based tool for Hough/Radon based EBSD orientation indexing.

Build status Documentation status PyPI version

The pattern processing is based on a GPU pipeline, and is based on the work of S. I. Wright and B. L. Adams. Metallurgical Transactions A-Physical Metallurgy and Materials Science, 23(3):759–767, 1992, and N. Krieger Lassen. Automated Determination of Crystal Orientations from Electron Backscattering Patterns. PhD thesis, The Technical University of Denmark, 1994.

The band indexing is achieved through triplet voting using the methods outlined by A. Morawiec. Acta Crystallographica Section A Foundations and Advances, 76(6):719–734, 2020.

Additionally NLPAR pattern processing is included (original distribution NLPAR; P. T. Brewick, S. I. Wright, and D. J. Rowenhorst. Ultramicroscopy, 200:50–61, May 2019.).

Documentation with installation instructions, a user guide, API reference, changelog, and contributing guide is available at


See the documentation for installation instructions.

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