Support for JPEG HDR?

Hey quiet list!

I have a couple of questions for Greg and anyone else who is on top of this:

- What viewing software (aside from Photosphere) supports the full decoding of the JPEG HDR file format?
- What utilities are available for the non-commercial conversion of HDR files to JPEG HDR (on a server)? (Should I be talking to Brightside?)
- Are there any common graphics toolkits (like ImageMagick, NetPBM, etc.) that can non-destructively transform HDR images?

If you can't tell where I'm going with this, then let me explain: I'd basically like to set up a web-based "gallery" of LDR and HDR images with dynamic content processed by the server. Files in common HDR formats could be uploaded and the server would handle things like thumbnails, resizing, gathering image data, and converting to browser-viewable JPEG HDR. (The HDR version would then be "inspectable" upon downloading the JPEG HDR) I've got all the pieces except HDR support...

-Mark

Hi Mark,

This would seem to fit within the "non-commercial" restrictions of the JPEG-HDR software license from BrightSide Technologies. You can download compiled tools for Linux, Windows, and OS X to go between JPEG-HDR and Radiance RGBE formats from their website:

  http://www.brightsidetech.com/products/process.php

I have a program for OS X that reads and writes all the formats understood by Photosphere, and allows simple resampling and brightness scaling. It would be possible to compile it under Linux with a little work, but Windows of course is a pain in the arse...

-Greg

···

From: "Mark Banas (lists)" <[email protected]>
Date: February 28, 2006 9:31:29 PM PST

Hey quiet list!

I have a couple of questions for Greg and anyone else who is on top of this:

- What viewing software (aside from Photosphere) supports the full decoding of the JPEG HDR file format?
- What utilities are available for the non-commercial conversion of HDR files to JPEG HDR (on a server)? (Should I be talking to Brightside?)
- Are there any common graphics toolkits (like ImageMagick, NetPBM, etc.) that can non-destructively transform HDR images?

If you can't tell where I'm going with this, then let me explain: I'd basically like to set up a web-based "gallery" of LDR and HDR images with dynamic content processed by the server. Files in common HDR formats could be uploaded and the server would handle things like thumbnails, resizing, gathering image data, and converting to browser-viewable JPEG HDR. (The HDR version would then be "inspectable" upon downloading the JPEG HDR) I've got all the pieces except HDR support...

-Mark

Hi Mark,

You can also take a look at:

http://www.mpi-sb.mpg.de/resources/pfstools/

The latest version (1.3 in the CVS) can read and write JPEG HDR files
("jpeghdr" library must be installed before compilation). There are
command line tools for resizing, cropping and reading/writing files in
all major HDR formats. The software is GPLed.

Rafal

···

On 3/1/06, Gregory J. Ward <[email protected]> wrote:

Hi Mark,

This would seem to fit within the "non-commercial" restrictions of
the JPEG-HDR software license from BrightSide Technologies. You can
download compiled tools for Linux, Windows, and OS X to go between
JPEG-HDR and Radiance RGBE formats from their website:

        http://www.brightsidetech.com/products/process.php

I have a program for OS X that reads and writes all the formats
understood by Photosphere, and allows simple resampling and
brightness scaling. It would be possible to compile it under Linux
with a little work, but Windows of course is a pain in the arse...

-Greg

> From: "Mark Banas (lists)" <[email protected]>
> Date: February 28, 2006 9:31:29 PM PST
>
> Hey quiet list!
>
> I have a couple of questions for Greg and anyone else who is on top
> of this:
>
> - What viewing software (aside from Photosphere) supports the full
> decoding of the JPEG HDR file format?
> - What utilities are available for the non-commercial conversion of
> HDR files to JPEG HDR (on a server)? (Should I be talking to
> Brightside?)
> - Are there any common graphics toolkits (like ImageMagick, NetPBM,
> etc.) that can non-destructively transform HDR images?
>
> If you can't tell where I'm going with this, then let me explain:
> I'd basically like to set up a web-based "gallery" of LDR and HDR
> images with dynamic content processed by the server. Files in
> common HDR formats could be uploaded and the server would handle
> things like thumbnails, resizing, gathering image data, and
> converting to browser-viewable JPEG HDR. (The HDR version would
> then be "inspectable" upon downloading the JPEG HDR) I've got all
> the pieces except HDR support...
>
> -Mark

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http://www.radiance-online.org/mailman/listinfo/hdri

Hi Greg & Rafal,

Thank you both for pointing out those resources! I will definitely be playing around with them to see what I can come up with. It looks like pfstools will do most of what I need (as long as I can handle a makefile or two - hey, I'm just an artist), and I think I'll contact Brightside just to make sure I'm on the non-commercial side of the fence regarding JPEG HDR.

So outside of Photosphere and pfsview, are there any other JPEG HDR viewers available yet? (Not that I mind recommending that visitors get Photosphere, but building pfsview.exe might be a bit much for some Windows users...)

Thanks again!

-Mark

···

On Mar 1, 2006, at 2:33 AM, Rafal Mantiuk wrote:

Hi Mark,

You can also take a look at:

http://www.mpi-sb.mpg.de/resources/pfstools/

The latest version (1.3 in the CVS) can read and write JPEG HDR files
("jpeghdr" library must be installed before compilation). There are
command line tools for resizing, cropping and reading/writing files in
all major HDR formats. The software is GPLed.

Rafal

On 3/1/06, Gregory J. Ward <[email protected]> wrote:

Hi Mark,

This would seem to fit within the "non-commercial" restrictions of
the JPEG-HDR software license from BrightSide Technologies. You can
download compiled tools for Linux, Windows, and OS X to go between
JPEG-HDR and Radiance RGBE formats from their website:

        http://www.brightsidetech.com/products/process.php

I have a program for OS X that reads and writes all the formats
understood by Photosphere, and allows simple resampling and
brightness scaling. It would be possible to compile it under Linux
with a little work, but Windows of course is a pain in the arse...

-Greg

From: "Mark Banas (lists)" <[email protected]>
Date: February 28, 2006 9:31:29 PM PST

Hey quiet list!

I have a couple of questions for Greg and anyone else who is on top
of this:

- What viewing software (aside from Photosphere) supports the full
decoding of the JPEG HDR file format?
- What utilities are available for the non-commercial conversion of
HDR files to JPEG HDR (on a server)? (Should I be talking to
Brightside?)
- Are there any common graphics toolkits (like ImageMagick, NetPBM,
etc.) that can non-destructively transform HDR images?

If you can't tell where I'm going with this, then let me explain:
I'd basically like to set up a web-based "gallery" of LDR and HDR
images with dynamic content processed by the server. Files in
common HDR formats could be uploaded and the server would handle
things like thumbnails, resizing, gathering image data, and
converting to browser-viewable JPEG HDR. (The HDR version would
then be "inspectable" upon downloading the JPEG HDR) I've got all
the pieces except HDR support...

-Mark

_______________________________________________
HDRI mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/hdri

_______________________________________________
HDRI mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/hdri

Mark,

So outside of Photosphere and pfsview, are there any other JPEG HDR
viewers available yet? (Not that I mind recommending that visitors
get Photosphere, but building pfsview.exe might be a bit much for
some Windows users...)

I can't answer this question regarding JPEG HDR, but if you need a
starting point for your search, you might want to try this page of HDR
software:
http://luminance.londonmet.ac.uk/webhdr/software.shtml

Although none of the packages is listed as supporting JPEG HDR, you might
be lucky, and one or the other supports them. Please feel free to email me
any comments or updates about the page.

Axel