Update cuCIM for consistency with scikit-image 0.26 (#1038)#1047
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rapids-bot[bot] merged 1 commit intorapidsai:release/26.04from Mar 17, 2026
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This PR ports recent API and implementation changes from scikit-image 0.26. ### Key Changes - There is one new keyword argument, `boundary_mode` added to `binary_blobs`. - There was some minor refactoring in `regionprops` and addition of one new property, "intensity_median". - There are some new deprecations / removals - Previously deprecated `shift_x` and `shift_y` arguments to `erosion` and `dilation` are now removed - For `remove_small_objects`, the parameter `min_size` is deprecated in favor of `max_size` - For `remove_small_holes`, the parameter `area_threshold` is deprecated in favor of `max_size` - many misc docstring fixes - large refactor of geometric transforms code to match the scikit-image 0.26 behavior/API - most changes to `_shared/utils.py` are additional helpers related to this refactor (also ported from scikit-image 0.26) - `cucim.skimage.segmentation` also now has a separate `__init__.pyi` for lazy loading - some existing test cases now load the local copies of test data from the repository instead of relying on `fetch` (fetch no longer works for these files in scikit-image 0.26). ### Possibly follow-up tasks - provide batch implementation for `intensity_median` in `_regionprops_gpu.py` - make decision on deprecating `cucim.skimage.morphology.binary_*` functions - These are deprecated now in scikit-image 0.26. - For cuCIM, the binary variants are around 2x faster so I kept them for now. A follow-up task would be to update the grayscale variants to automatically dispatch to the faster binary kernel when possible. Then we could remove the separate `binary_*` functions without losing performance. ### Directory layout change in scikit-image 0.26 - scikit-image has switched to separate `src/skimage` and `tests/skimage` folder layout. - I have currently kept the existing folder layout in cuCIM (`tests` subfolder within each `cucim.skimage` module) Authors: - Gregory Lee (https://github.com/grlee77) Approvers: - Gil Forsyth (https://github.com/gforsyth) - Gigon Bae (https://github.com/gigony) URL: rapidsai#1038
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grlee77
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Mar 17, 2026
jameslamb
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Changes merged into
mainin 20fec39 that are needed for the 26.04 release if we want Python 3.14 support.Cherry-picked to avoid the 26.06 tag on the
mainbranch.