astropy/ccdproc

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Astropy affiliated package for reducing optical/IR CCD data

Stars: 93
Forks: 92
Open beginner issues: 0
Indexed issues: 81
Avg merge: 14h 44m
Merged PRs (30d): 30

Dominant language: Python
License: BSD-3-Clause
Last GitHub push: Sep 7, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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81 open issues indexed

[2.4.1] test_less_strict_verify_option tests for the wrong warning Open

astropy/ccdproc#816 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`Combiner.sigma_clipping` overwrites existing masks Open

astropy/ccdproc#849 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
licenses directory is missing in ccdproc-2.4.3.tar.gz Open

bug

astropy/ccdproc#872 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Use a GitHub Actions publish workflow Open

enhancement release 🎉

astropy/ccdproc#879 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Refactor validation logic in combiner Open

enhancement

astropy/ccdproc#903 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Move pytest fixtures into conftest.py Open

tests

astropy/ccdproc#905 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
CuPy issues Open

astropy/ccdproc#909 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
CuPy issues in `test_ccdproc` Open

astropy/ccdproc#910 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
CuPy issues in `test_combiner` Open

astropy/ccdproc#911 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
CuPy issues in `test_cosmicray` Open

astropy/ccdproc#912 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
CuPy issues in `test_image_collection` Open

astropy/ccdproc#913 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Array API: Combiner.sigma_clipping and the default sigma_func densify via astropy.stats Open

bug combiner Upstream fix required

astropy/ccdproc#929 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Array API: wcs_project mixes numpy output from reproject with xp operations Open

bug Upstream fix required

astropy/ccdproc#930 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Array API: subtract_overscan model fitting goes through numpy-only astropy.modeling Open

bug Upstream fix required

astropy/ccdproc#933 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Array API: locate the source of __array__(copy=...) DeprecationWarnings in CuPy runs Open

bug tests

astropy/ccdproc#934 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Array API: decide a policy for inherently CPU-only operations Open

astroscrappy question

astropy/ccdproc#935 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Array API: units/Quantity handling with non-numpy arrays Open

bug Upstream fix required

astropy/ccdproc#936 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add sparse test backend as a densification detector (and eventual supported library) Open

enhancement tests

astropy/ccdproc#938 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Tracking: upstream array-API blockers (astropy, reproject, astroscrappy) Open

Upstream fix required

astropy/ccdproc#940 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
array-api-strict triage: escape-site mapping of the remaining test failures Open

astropy/ccdproc#941 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Escape-baseline keys are fragile across Python versions (comprehension frame names, PEP 709) Open

bug tests

astropy/ccdproc#945 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Refactor _escape_triage.py: split concerns and register pytest hooks explicitly Open

tests

astropy/ccdproc#947 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Tracking: remaining work for the array-API migration Open

astropy/ccdproc#971 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Consider marray as a uniform masked-array representation across array backends Open

astropy/ccdproc#983 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Exclude masked pixels from the median filter in cosmicray_median Open

astropy/ccdproc#984 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`Combiner.sigma_clipping`: `low_thresh`/`high_thresh` docstring no longer matches behaviour (`None` means 3σ, negatives are not `abs()`-ed) Open

astropy/ccdproc#1002 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
combine(): uncertainty and mask always allocated at full output size regardless of mem_limit, and each tile re-reads whole input files Open

astropy/ccdproc#1012 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
subtract_dark(scale=True) promotes float32 inputs to float64; scale=False does not Open

astropy/ccdproc#1013 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
docs: array_api.rst limitations section is turning into a changelog; restructure after the array-API PRs land Open

docs

astropy/ccdproc#1014 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Consider promoting the `_to_xp` test helper to a shared fixture Open

astropy/ccdproc#1015 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Complex input to the _nanfuncs reductions loses its imaginary part on non-NumPy backends Open

bug

astropy/ccdproc#1016 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

astropy/ccdproc

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