GITC-7383: Fixed JPEG driver issue, updated maintainer information

[jackiryan]

Description

Main fix for the point release 2.4.1, this fixes a regression introduced in 2.4.0 where single-banded input granules could not be converted to JPEG. This is because JPEG images do not support color palettes or transparency, so we need to rasterize the data before conversion like we were doing before. I also updated the maintainer information since Mauricio and I will be maintaining the code from now on.

Jira Issue ID

GITC-7383

Local Test Steps

PR Acceptance Checklist

• Jira ticket acceptance criteria met.
• CHANGELOG.md updated to include high level summary of PR changes.
• docker/service_version.txt updated if publishing a release.
• Tests added/updated and passing.
• Documentation updated (if needed).

[jackiryan]

For the record, I am having a chicken and egg problem understanding the workflow for testing this version with the regression test notebook. As far as I can tell, even a locally deployed harmony needs to be pointed to a version of hybig and other services deployed in SIT or UAT, so I don't think I can do the regression tests until I deploy this version in SIT/UAT.

[jtroberts]

Is 3 bands really needed? It looks like the same grey data is being copied into 3 bands. Couldn't we just return a single grey band?

[jackiryan]

To be consistent, yes. A greyscale JPEG can be a raster with three bands all the same color level. It can also be a single-banded image, but I prefer to keep it simple. The compression algorithm deals with it.

[flamingbear]

@jackiryan

As far as I can tell, even a locally deployed harmony needs to be pointed to a version of hybig and other services deployed in SIT or UAT, so I don't think I can do the regression tests until I deploy this version in SIT/UAT.

That's not actually true I don't think. If you Have Harmony-In-A-Box and are running commands locally (localhost:3000), the CMR requests will go through UAT, but the processing will all happen locally in your k8s cluster. You can run the regression tests locally as well, just not in docker. You have to create the regression python environ, run jupyter lab, and in the browser run the regression notebook, pointing the harmony_host_url to http://localhost:3000 and it will run against your deployed hybig image.