[fitsbits] FITS status ? {External}

[Barrett, Paul]

I have no objections to including JPEG-XL into the standard.

Thanks for the link. I see Julia already has a wrapper for the
libjpeg-turbo library.

 -- Paul

On Wed, May 28, 2025 at 7:33 PM Seaman, Robert Lewis - (rseaman) via
fitsbits <fitsbits at listmgr.nrao.edu> wrote:

> Hi Paul and all,
>
>
>
> Note that all compression methods have trade-offs, and a single algorithm
> is not best for all purposes. FITS tile compression supports multiple
> options for exactly that reason. The default is likely to remain Rice,
> though we are considering some separate improvements there, as well.
>
>
>
> Start at https://jpeg.org/jpegxl/
>
>
>
> Thanks for replying quickly. If folks have objections to JPEG-XL, they
> should speak up.
>
>
>
> Rob
>
>
>
>
>
>
>
> On 5/28/25, 3:46 PM, "fitsbits" wrote:
>
>
>
>
> ------------------------------
>
> First, where can I find a JPEG XL library or even better, the standard?
> I'd preferably like to have a Julia implementation of the standard for
> performance. It would enable me to easily use GPUs, when available.
>
>
>
> Second, I have just registered FITSFiles.jl v0.2 with the Julia general
> registry. It should be available in a day or two. This version provides
> basic read/write functionality for uncompressed HDUs. The compressed HDUs
> still need the code/decode functions implemented.
>
>
>
> Third, I still fall under category A, obviously. To do B, you need money
> and resources and that currently does not look promising.
>
>
>
> Cheers,
>
> Paul
>
>
>
> On Wed, May 28, 2025 at 6:19 PM Seaman, Robert Lewis - (rseaman) via
> fitsbits <fitsbits at listmgr.nrao.edu> wrote:
>
> Hello FITS folks,
>
>
>
> I circulated a thread a couple of weeks ago about a proposed small
> addition to the allowed values for ZCMPTYPE to include “JPEGXL”. There are
> some other small details, but it isn’t much more complicated than that, and
> incrementing the standard (https://fits.gsfc.nasa.gov/fits_standard.html)
> to version 4.01. Support in astropy and CFITSIO is in the works.
>
>
>
> Since then, I’ve contacted the latest two IAU FITS WG chairs, who are both
> now retired. The more basic logistical questions are A) who remains engaged
> from the old days in FITS as a standard, and B) how to navigate a
> transition to early (well, earlier) career astronomical software
> professionals.
>
>
>
> Action items:
>
> ·      Please respond to this ping if you fall under category A
>
> ·      Please make suggestions about how to do B
>
> ·      Please consider participating in either:
>
> o  the upcoming ADASSx Summer Workshop, August 1-5, 2025, following the
> Rubin Community Workshop in Tucson (
> https://catalina.lpl.arizona.edu/adassx-2025)
>
> o  and/or the regular ADASS XXXV, November 9-13, Görlitz, Germany
> (website soon)
>
> o  and perhaps even submit FITS-related abstracts!
>
>
>
> FITS governance may need refreshing, but FITS as a day-to-day standard in
> astronomy continues strong.
>
>
>
> Rob Seaman
>
> Catalina Sky Survey
>
> University of Arizona
>
> _______________________________________________
> fitsbits mailing list
> fitsbits at listmgr.nrao.edu
> https://listmgr.nrao.edu/mailman/listinfo/fitsbits
>
>
>
>
> --
>
> Paul Barrett, PhD
>
> Department of Physics
>
> The George Washington University
>
> Washington, DC 20052
>
>
> _______________________________________________
> fitsbits mailing list
> fitsbits at listmgr.nrao.edu
> https://listmgr.nrao.edu/mailman/listinfo/fitsbits
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listmgr.nrao.edu/pipermail/fitsbits/attachments/20250529/f5fed02f/attachment.html>