Specreduce

• The new FitTrace class (see "API Changes" below) introduces the ability to take a polynomial trace of an image [#128]

• Renamed KosmosTrace as FitTrace, a conglomerate class for traces that are fit to images instead of predetermined [#128]

• The default number of bins for FitTrace is now its associated image's number of dispersion pixels instead of 20. Its default peak_method is now 'max' [#128]

• All operations now accept Spectrum1D and Quantity-type images. All accepted image types are now processed internally as Spectrum1D objects [#144, #154]

• All operations' image attributes are now coerced Spectrum1D objects [#144, #154]

• HorneExtract can now handle non-flat traces [#148]

• Fixed passing a single Trace object to Background [#146]

• Moved away from creating image masks with numpy's mask_invalid() function after change to upstream API. This will make specreduce be compatible with numpy 1.24 or later. [#155]

• BUG: fix passing single Trace object to Background by @kecnry in https://github.com/astropy/specreduce/pull/146
• Introducing polynomial tracing by @ojustino in https://github.com/astropy/specreduce/pull/128
• Better handled Spectrum1D images across classes by @ojustino in https://github.com/astropy/specreduce/pull/144
• Add summary of capabilities/user stories to docs index page by @rosteen in https://github.com/astropy/specreduce/pull/149
• Fix changelog formatting by @larrybradley in https://github.com/astropy/specreduce/pull/150
• Introducing spectral extractions for non-flat traces by @bmorris3 in https://github.com/astropy/specreduce/pull/148
• Update image handling in notebooks by @ojustino in https://github.com/astropy/specreduce/pull/154
• Use simpler checks for invalid values by @ojustino in https://github.com/astropy/specreduce/pull/155
• Prepare changelog for release v1.3.0 by @ojustino in https://github.com/astropy/specreduce/pull/156

• @rosteen made their first contribution in https://github.com/astropy/specreduce/pull/149
• @larrybradley made their first contribution in https://github.com/astropy/specreduce/pull/150
• @bmorris3 made their first contribution in https://github.com/astropy/specreduce/pull/148

Full Changelog: https://github.com/astropy/specreduce/compare/v1.2.0...v1.3.0