Girder-large-image

Improvements
- In Girder, prefer geospatial sources for geospatial data ([564](../../pull/564))

Bug Fixes
- The GDAL source failed when getting band ranges on non-integer data ([565](../../pull/565))

Features
- Added a Girder endpoint to get metadata on associated images ([561](../../pull/561))
- Added an option to try all Girder items for use as large images ([562](../../pull/562))

Improvements
- Reduce gdal warning about projection strings ([559](../../pull/559))
- Don't report needless frame information for some single frame files ([558](../../pull/558))
- Send Backbone events on frame changes in the viewer ([563](../../pull/563))

Changes
- The PIL tilesource priority is slightly higher than other fallback sources ([560](../../pull/560))

Bug Fixes
- Fix compositing when using different frame numbers and partial tiles ([557](../../pull/557))

Features
- Multiple frames can be composited together with the style option ([554](../../pull/554), [556](../../pull/556))

Improvements
- Warn when opening an inefficient tiff file ([555](../../pull/555))

Features
- Added a `canRead` method to the core module ([512](../../pull/512))
- Image conversion supports JPEG 2000 (jp2k) compression ([522](../../pull/522))
- Image conversion can now convert images readable by large_image sources but not by vips ([529](../../pull/529))
- Added an `open` method to the core module as an alias to `getTileSource` ([550](../../pull/550))
- Added an `open` method to each file source module ([550](../../pull/550))
- Numerous improvement to image conversion ([533](../../pull/533), [535](../../pull/535), [537](../../pull/537), [541](../../pull/541), [544](../../pull/544), [545](../../pull/545), [546](../../pull/546), [549](../../pull/549))

Improvements
- Better release bioformats resources ([502](../../pull/502))
- Better handling of tiff files with JPEG compression and RGB colorspace ([503](../../pull/503))
- The openjpeg tile source can decode with parallelism ([511](../../pull/511))
- Geospatial tile sources are preferred for geospatial files ([512](../../pull/512))
- Support decoding JP2k compressed tiles in the tiff tile source ([514](../../pull/514))
- Hardened tests against transient timing issues ([532](../../pull/532), [536](../../pull/536))

Changes
- The image conversion task has been split into two packages, large_image_converter and large_image_tasks. The tasks module is used with Girder and Girder Worker for converting images and depends on the converter package. The converter package can be used as a stand-alone command line tool ([518](../../pull/518))

Bug Fixes
- Harden updates of the item view after making a large image ([508](../../pull/508), [515](../../pull/515))
- Tiles in an unexpected color mode weren't consistently adjusted ([510](../../pull/510))
- Harden trying to add an annotation before the viewer is ready ([547](../../pull/547))
- Correctly report the tile size after resampling in the tileIterator ([538](../../pull/538))

Improvements
- Reduce caching associated images when the parent item changes ([491](../../pull/491))
- Test with Python 3.9 ([493](../../pull/493))
- Add a hideAnnotation function in the client ([490](../../pull/490))
- Expose more resample options for region and histogram endpoints ([496](../../pull/496))
- Improve OME tiff preferred level calculation for OME tiffs with subifds ([496](../../pull/496))

Changes
- Include the annotationType to the annotation conversion method in the client ([490](../../pull/490))

Notes
- This will be the last version to support Python 2.7 and 3.5.

Improvements
- Include ETag support in some Girder rest requests to reduce data transfer ([488](../../pull/488))

Changes
- Don't let bioformats handle pngs ([487](../../pull/487))