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34 lines
1016 B
ReStructuredText
34 lines
1016 B
ReStructuredText
Interoperability
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****************
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Image processing software
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Some python image processing software packages
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organize arrays differently than rasterio. The interpretation of a
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3-dimension array read from ``rasterio`` is::
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(bands, rows, columns)
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while image processing software like ``scikit-image``, ``pillow`` and ``matplotlib`` are generally ordered::
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(rows, columns, bands)
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The number of rows defines the dataset's height, the columns are the dataset's width.
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Numpy provides a way to efficiently swap the axis order and you can use the
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following functions to convert between raster and image axis order:
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.. code:: python
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def reshape_as_image(arr):
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"""raster order (bands, rows, cols) -> image (rows, cols, bands)
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"""
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return np.swapaxes(np.swapaxes(arr, 0, 2), 0, 1)
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def reshape_as_raster(arr):
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"""image order (rows, cols, bands) -> rasterio (bands, rows, cols)
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"""
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return np.swapaxes(np.swapaxes(arr, 2, 0), 2, 1)
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