astropy/reproject

Issues somebody may already be working on are listed last. List everything by date

• Meta-issue: summary of work on non-reprojected dimensions and improved dask support

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  astropy/reproject#623 · 1 reaction · Opened Jul 10, 2026

• Enable option of minimal install without dask and dask-image

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  Difficulty 5/5 Over a week Newbie friendliness 35/100

  astropy/reproject#595 · 5 comments · 1 reaction · Opened Apr 21, 2026

• `find_optimal_celestial_wcs` fails with a stack of solar WCSes, when specifying a frame which is not the first element of the sequence

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  bug mosaicking

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  astropy/reproject#583 · Opened Feb 5, 2026

• reproject_adaptive collapses for very large shape_out: returns all-NaN + zero footprint

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  astropy/reproject#579 · 9 comments · Opened Dec 22, 2025

• HIPS: convert to png on the fly?

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  astropy/reproject#569 · Opened Nov 3, 2025

• Reorganize documentation

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  astropy/reproject#567 · 1 comment · Opened Nov 2, 2025

• Allow spectral-cube as an input type

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  astropy/reproject#565 · 4 comments · Opened Nov 2, 2025

• Testing errors in test_reproject_parallel_broadcasting with reproject 1.5.0 and python 3.14/numpy 2.3.2

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  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  astropy/reproject#552 · 3 comments · Opened Sep 9, 2025

• Reduce memory usage of pixel_to_pixel

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  performance

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  astropy/reproject#534 · 4 comments · Opened Jul 11, 2025

• HIPS - how do you handle transparency?

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  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  astropy/reproject#529 · 4 comments · Opened Jul 5, 2025

• Add documentation for coadd_hips

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  Documentation hips

  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  astropy/reproject#524 · Opened Jul 4, 2025

• Add documentation/examples for reprojecting RGB images

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  Documentation

  Difficulty 3/5 1-2 days Newbie friendliness 48/100

  astropy/reproject#522 · Opened Jul 4, 2025

• Make it possible to output PNG/JPEG tiles if input is FITS for HiPS

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  enhancement hips

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  astropy/reproject#520 · Opened Jul 4, 2025

• Add support for reprojecting from HiPS and HiPS3D to standard projections

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  enhancement hips

  Difficulty 5/5 Over a week Newbie friendliness 30/100

  astropy/reproject#519 · 1 comment · Opened Jul 4, 2025

• Add support for reprojecting a HiPS to a different coordinate system

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  enhancement hips

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  astropy/reproject#517 · Opened Jul 4, 2025

• Implement plane-to-plane transformations for tangent plane projections

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  performance

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  astropy/reproject#503 · 2 comments · Opened May 9, 2025

• GPU acceleration of the reproject package

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  Difficulty 5/5 Over a week Newbie friendliness 20/100

  astropy/reproject#489 · 15 comments · Opened Feb 3, 2025

• Dask Graph Cleanup needed after Rechunking in _reproject_dispatcher()

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  astropy/reproject#485 · Opened Jan 18, 2025

• Make reproject_to_healpix Compatible with Multiple images with the same WCS

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  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  astropy/reproject#478 · Opened Nov 22, 2024

• memmap exception if BLANK header is set

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  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  astropy/reproject#475 · Opened Oct 16, 2024

• BUG: generate_asdf.py should avoid running when GWCS is not installed

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  bug

  Difficulty 2/5 1-3 hours Newbie friendliness 45/100

  astropy/reproject#470 · 1 comment · Opened Sep 27, 2024

• Add return_footprint choice to function reproject_and_coadd

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  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  astropy/reproject#467 · Opened Sep 12, 2024

• Reproject using biquadratic and bicubic interpolation returns Nans

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  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  astropy/reproject#464 · 5 comments · Opened Aug 14, 2024

• Document logging

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  Documentation

  Difficulty 2/5 1-3 hours Newbie friendliness 50/100

  astropy/reproject#454 · Opened Jun 27, 2024

• Reproject to Non-standard Coordinate Systems

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  astropy/reproject#419 · 1 comment · Opened Nov 28, 2023

• Implement support for dask input/output

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  Difficulty 5/5 Over a week Newbie friendliness 20/100

  astropy/reproject#362 · Opened May 19, 2023

• Saving mosaic image as a fits file with appropriate header.

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  astropy/reproject#357 · 2 comments · Opened Apr 25, 2023

• Reprojection results in nan array

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  astropy/reproject#355 · 3 comments · Opened Apr 2, 2023

• Reprojection changes floating point precision

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  Difficulty 2/5 1-3 hours Newbie friendliness 35/100

  astropy/reproject#353 · 2 comments · Opened Mar 16, 2023

• reproject_and_coadd bug with circular data

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  astropy/reproject#350 · Opened Mar 13, 2023

• Using reproject_from_healpix produces an array with 3 dimensions

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  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  astropy/reproject#341 · Opened Feb 28, 2023

• Pixel-to-pixel conversion failing because of doppler convention

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  astropy/reproject#312 · Opened Sep 24, 2022

• _reproject_full in core.py for interpolation

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  Difficulty 2/5 1-3 hours Newbie friendliness 50/100

  astropy/reproject#295 · Opened Jun 30, 2022

• `reproject_and_coadd` is picky with WCS

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  astropy/reproject#294 · 4 comments · Opened Jun 10, 2022

• Provide entrypoint for specifying alternate versions of `map_coordinates`

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  astropy/reproject#282 · 5 comments · Opened Mar 22, 2022

• Missing non-celestial reprojection routines

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  astropy/reproject#278 · 3 comments · Opened Feb 3, 2022

• Add CITATION file

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  Difficulty 2/5 1-3 hours Newbie friendliness 35/100

  astropy/reproject#262 · 4 comments · Opened Dec 24, 2021

• Convenience tool for up/downsampled spatial WCS

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  Difficulty 5/5 Over a week Newbie friendliness 35/100

  astropy/reproject#260 · 12 comments · Opened Dec 9, 2021

• Reproject in multiprocessing

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  astropy/reproject#259 · 1 comment · Opened Nov 25, 2021

• Mosaic wcs

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  astropy/reproject#258 · 1 comment · Opened Nov 20, 2021

• reproject_exact failure with rotation?

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  astropy/reproject#256 · Opened Oct 29, 2021

• Interpolation fails with single-precision data (at least sometimes?)

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  Difficulty 2/5 1-3 hours Newbie friendliness 55/100

  astropy/reproject#255 · 1 comment · Opened Sep 2, 2021

• All Reproject functions output NaN

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  Difficulty 4/5 3-5 days Newbie friendliness 30/100

  astropy/reproject#252 · Opened Jun 9, 2021

• reproject_interp missing method description or reference

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  Difficulty 3/5 1-2 days Newbie friendliness 42/100

  astropy/reproject#240 · 2 comments · Opened Jul 6, 2020

• reproject_exact missing method description or reference

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  Difficulty 2/5 1-3 hours Newbie friendliness 45/100

  astropy/reproject#237 · 2 comments · Opened Jun 21, 2020

• Add examples that show how to use reproject to make plots with multiple images overlaid

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  Documentation enhancement

  Difficulty 2/5 Half a day Newbie friendliness 45/100

  astropy/reproject#235 · 3 comments · Opened May 28, 2020

• Add WCS.celestial examples to the docs

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  Difficulty 2/5 1-3 hours Newbie friendliness 65/100

  astropy/reproject#232 · 2 comments · Opened May 20, 2020

• Add input_masks to reproject_and_coadd

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  enhancement

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  astropy/reproject#220 · Opened Feb 26, 2020

• Add a function to estimate covariance matrix of output image

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  enhancement

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  astropy/reproject#219 · Opened Feb 26, 2020

• Add option to keep original resolution

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  enhancement

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  astropy/reproject#217 · Opened Feb 18, 2020