astropy/reproject

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Python-based Astronomical image reprojection :milky_way: - maintainers @astrofrog @Cadair @svank

Stars: 127
Forks: 74
Open beginner issues: 0
Indexed issues: 67
Avg merge: 1d 11h
Merged PRs (30d): 2

Dominant language: Python
License: BSD-3-Clause
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 14, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

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67 open issues indexed

Add a C wrapper to compute polygon solid angles Open

c-extension

astropy/reproject#6 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Wrap `overlapAreaPP.c` Open

c-extension

astropy/reproject#10 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add a routine to compute the solid angle of all pixels in a FITS image Open

help-wanted

astropy/reproject#15 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Benchmarking Tools Open

astropy/reproject#26 · 21 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make sure reprojection routines work with large images Open

enhancement

astropy/reproject#37 · 14 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Implement support for Drizzle Open

enhancement help-wanted

astropy/reproject#56 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add flux-preserving mode to reproject Open

enhancement help-wanted

astropy/reproject#68 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add flux-preserving exact reproject for HEALPIX? Open

enhancement help-wanted

astropy/reproject#70 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Command-line function for healpix reprojection: reproject.grid_size Open

healpix

astropy/reproject#87 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make interpolation algorithm more flexible Open

enhancement help-wanted

astropy/reproject#108 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Wrapping interpolation for all-sky CAR projection Open

help-wanted

astropy/reproject#135 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Issue with HEALPix example Open

healpix

astropy/reproject#174 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Implement error-weighted reprojections Open

enhancement

astropy/reproject#183 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Correctly deal with different spectral axis conventions Open

enhancement

astropy/reproject#209 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Add support for reprojecting data cubes with celestial slices using the exact mode Open

enhancement

astropy/reproject#210 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
reproject_interp with a distortion table Open

bug

astropy/reproject#213 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
Not clear what match_background=True does Open

astropy/reproject#215 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add option to keep original resolution Open

enhancement

astropy/reproject#217 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add a function to estimate covariance matrix of output image Open

enhancement

astropy/reproject#219 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add input_masks to reproject_and_coadd Open

enhancement

astropy/reproject#220 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add WCS.celestial examples to the docs Open

astropy/reproject#232 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add examples that show how to use reproject to make plots with multiple images overlaid Open

Documentation enhancement

astropy/reproject#235 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
reproject_exact missing method description or reference Open

astropy/reproject#237 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
reproject_interp missing method description or reference Open

astropy/reproject#240 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
All Reproject functions output NaN Open

astropy/reproject#252 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Interpolation fails with single-precision data (at least sometimes?) Open

astropy/reproject#255 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
reproject_exact failure with rotation? Open

astropy/reproject#256 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Mosaic wcs Open

astropy/reproject#258 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Reproject in multiprocessing Open

astropy/reproject#259 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Convenience tool for up/downsampled spatial WCS Open

astropy/reproject#260 · 12 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add CITATION file Open

astropy/reproject#262 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Missing non-celestial reprojection routines Open

astropy/reproject#278 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Provide entrypoint for specifying alternate versions of `map_coordinates` Open

astropy/reproject#282 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`reproject_and_coadd` is picky with WCS Open

astropy/reproject#294 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
_reproject_full in core.py for interpolation Open

astropy/reproject#295 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Pixel-to-pixel conversion failing because of doppler convention Open

astropy/reproject#312 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Using reproject_from_healpix produces an array with 3 dimensions Open

astropy/reproject#341 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
reproject_and_coadd bug with circular data Open

astropy/reproject#350 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Reprojection changes floating point precision Open

astropy/reproject#353 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Reprojection results in nan array Open

astropy/reproject#355 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Saving mosaic image as a fits file with appropriate header. Open

astropy/reproject#357 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Implement support for dask input/output Open

astropy/reproject#362 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Reproject to Non-standard Coordinate Systems Open

astropy/reproject#419 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Document logging Open

Documentation

astropy/reproject#454 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Reproject using biquadratic and bicubic interpolation returns Nans Open

astropy/reproject#464 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add return_footprint choice to function reproject_and_coadd Open

astropy/reproject#467 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
BUG: generate_asdf.py should avoid running when GWCS is not installed Open

bug

astropy/reproject#470 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
memmap exception if BLANK header is set Open

astropy/reproject#475 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make reproject_to_healpix Compatible with Multiple images with the same WCS Open

astropy/reproject#478 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Dask Graph Cleanup needed after Rechunking in _reproject_dispatcher() Open

astropy/reproject#485 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

astropy/reproject

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