Sparse format/model references:
FabIO 2026.6.0 commit 9ddb6f6ce22e79056bec0f6e6b97d7ebc29cbece
src/fabio/sparseimage.py and deterministic portion of src/fabio/ext/dense.pyx
https://github.com/silx-kit/fabio/tree/9ddb6f6ce22e79056bec0f6e6b97d7ebc29cbece
Copyright 2020-2025 European Synchrotron Radiation Facility, Grenoble, France
Author: Jerome Kieffer (Jerome.kieffer@esrf.fr)
The Rust implementation uses the deterministic format/model description only;
no Python runtime, random-number generator or GPL/LGPL implementation is included.

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