Add Local Binary Pattern Image Filter #357
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JoostJM
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Requires `skimage` to function. `skimage` is not added to the requirements and only imported when the function is called. If the package is unavailable, a warning is logged and no image is yielded (does not crash the extraction, but no features for LBP are calculated)
Uses spherical harmonics implemented in `scipy` and defines an icosphere (implemented in `trimesh`) to sample neighbours. Derived images are returned for each level, with an additional derived image for the kurtosis. To reduce computation time/cost, LBP is only calculated for voxels included in the segmentation. To implement this, the signature of a filter function is changed (in addition to the image, the mask is also passed to the function). Update the examples, feature extractor and documentation accordingly.
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Requires
skimageto function.skimageis not added to the requirements and only imported when the function is called. If the package is unavailable, a warning is logged and no image is yielded (does not crash the extraction, but no features for LBP are calculated)