Discussion:
[Openexr-user] Openexr-user Digest, Vol 79, Issue 2
Lucien Fostier
2013-09-25 19:10:03 UTC
Permalink
Hi Florian,

your link doesnt seem to work, or is it just me?

Cheers

lucien

Envoyé de mon iPhone

Le 25 sept. 2013 à 20:11, openexr-user-***@nongnu.org a écrit :

> Send Openexr-user mailing list submissions to
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>
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>
> Today's Topics:
>
> 1. Interpreting Deep (Florian Kainz)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 24 Sep 2013 15:10:38 -0700
> From: Florian Kainz <***@ilm.com>
> To: "openexr-***@nongnu.org" <openexr-***@nongnu.org>,
> openexr-user <openexr-***@nongnu.org>
> Subject: [Openexr-user] Interpreting Deep
> Message-ID: <***@ilm.com>
> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
>
>
> To the more mathematically inclined OpenEXR users and developers:
>
> If you can spare the time, I would like you to read the attached
> document and give me feedback on it.
>
> The IlmImf library defines the file format for deep images and it
> provides convenient methods for writing deep image files. However,
> the library and the existing documentation (as of September 2013)
> do not explain in detail how deep images are meant to be interpreted.
>
> The attached document attempts to describe what the deep data in a file
> mean, and how compositing of deep images works. The document also points
> out numerical issues with the representation of volumetric samples, and
> proposes an alternate volumetric sample representation that would address
> those issues.
>
> I believe that agreement on the interpretation of deep OpenEXR files
> is desirable because it enables compatibility among different vendors'
> image compositing applications. In addition, anyone developing algorithms
> such as lossy compression would be able to rely on a standardized
> interpretation of a file's contents.
>
> Florian
> -------------- next part --------------
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>
> ------------------------------
>
> _______________________________________________
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> Openexr-***@nongnu.org
> https://lists.nongnu.org/mailman/listinfo/openexr-user
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>
> End of Openexr-user Digest, Vol 79, Issue 2
> *******************************************
Anders Langlands
2013-09-25 19:25:38 UTC
Permalink
Gives me a "not found on this server" error here.

Anders Langlands, VFX Supervisor
MPC Film
+1 438 990 5557<tel:+1%20438%20990%205557>
London - Montréal - Vancouver - Los Angeles - Bangalore
moving-picture.com/film<http://moving-picture.com/film>

On 25 Sep 2013, at 15:09, "Lucien Fostier" <***@gmail.com<mailto:***@gmail.com>> wrote:

Hi Florian,

your link doesnt seem to work, or is it just me?

Cheers

lucien

Envoyé de mon iPhone

Le 25 sept. 2013 à 20:11, openexr-user-***@nongnu.org<mailto:openexr-user-***@nongnu.org> a écrit :

Send Openexr-user mailing list submissions to
openexr-***@nongnu.org<mailto:openexr-***@nongnu.org>

To subscribe or unsubscribe via the World Wide Web, visit
https://lists.nongnu.org/mailman/listinfo/openexr-user
or, via email, send a message with subject or body 'help' to
openexr-user-***@nongnu.org<mailto:openexr-user-***@nongnu.org>

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When replying, please edit your Subject line so it is more specific
than "Re: Contents of Openexr-user digest..."


Today's Topics:

1. Interpreting Deep (Florian Kainz)


----------------------------------------------------------------------

Message: 1
Date: Tue, 24 Sep 2013 15:10:38 -0700
From: Florian Kainz <***@ilm.com<mailto:***@ilm.com>>
To: "openexr-***@nongnu.org<mailto:openexr-***@nongnu.org>" <openexr-***@nongnu.org<mailto:openexr-***@nongnu.org>>,
openexr-user <openexr-***@nongnu.org<mailto:openexr-***@nongnu.org>>
Subject: [Openexr-user] Interpreting Deep
Message-ID: <***@ilm.com<mailto:***@ilm.com>>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"


To the more mathematically inclined OpenEXR users and developers:

If you can spare the time, I would like you to read the attached
document and give me feedback on it.

The IlmImf library defines the file format for deep images and it
provides convenient methods for writing deep image files. However,
the library and the existing documentation (as of September 2013)
do not explain in detail how deep images are meant to be interpreted.

The attached document attempts to describe what the deep data in a file
mean, and how compositing of deep images works. The document also points
out numerical issues with the representation of volumetric samples, and
proposes an alternate volumetric sample representation that would address
those issues.

I believe that agreement on the interpretation of deep OpenEXR files
is desirable because it enables compatibility among different vendors'
image compositing applications. In addition, anyone developing algorithms
such as lossy compression would be able to rely on a standardized
interpretation of a file's contents.

Florian
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End of Openexr-user Digest, Vol 79, Issue 2
*******************************************
Florian Kainz
2013-09-25 22:08:55 UTC
Permalink
I was able to access the PDF file at this address just now:

http://lists.nongnu.org/archive/html/openexr-user/2013-09/pdfbiJS_1eVal.pdf

On 09/25/2013 12:10 PM, Lucien Fostier wrote:
> Hi Florian,
>
> your link doesnt seem to work, or is it just me?
>
> Cheers
>
> lucien
>
> Envoyé de mon iPhone
>
> Le 25 sept. 2013 à 20:11, openexr-user-***@nongnu.org a écrit :
>
>> Send Openexr-user mailing list submissions to
>> openexr-***@nongnu.org
>>
>> To subscribe or unsubscribe via the World Wide Web, visit
>> https://lists.nongnu.org/mailman/listinfo/openexr-user
>> or, via email, send a message with subject or body 'help' to
>> openexr-user-***@nongnu.org
>>
>> You can reach the person managing the list at
>> openexr-user-***@nongnu.org
>>
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of Openexr-user digest..."
>>
>>
>> Today's Topics:
>>
>> 1. Interpreting Deep (Florian Kainz)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Tue, 24 Sep 2013 15:10:38 -0700
>> From: Florian Kainz <***@ilm.com>
>> To: "openexr-***@nongnu.org" <openexr-***@nongnu.org>,
>> openexr-user <openexr-***@nongnu.org>
>> Subject: [Openexr-user] Interpreting Deep
>> Message-ID: <***@ilm.com>
>> Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"
>>
>>
>> To the more mathematically inclined OpenEXR users and developers:
>>
>> If you can spare the time, I would like you to read the attached
>> document and give me feedback on it.
>>
>> The IlmImf library defines the file format for deep images and it
>> provides convenient methods for writing deep image files. However,
>> the library and the existing documentation (as of September 2013)
>> do not explain in detail how deep images are meant to be interpreted.
>>
>> The attached document attempts to describe what the deep data in a file
>> mean, and how compositing of deep images works. The document also points
>> out numerical issues with the representation of volumetric samples, and
>> proposes an alternate volumetric sample representation that would address
>> those issues.
>>
>> I believe that agreement on the interpretation of deep OpenEXR files
>> is desirable because it enables compatibility among different vendors'
>> image compositing applications. In addition, anyone developing algorithms
>> such as lossy compression would be able to rely on a standardized
>> interpretation of a file's contents.
>>
>> Florian
>> -------------- next part --------------
>> A non-text attachment was scrubbed...
>> Name: Deep Image Data 09-24-13.pdf
>> Type: application/pdf
>> Size: 892494 bytes
>> Desc: not available
>> URL: <http://lists.nongnu.org/archive/html/openexr-user/attachments/20130924/841d4b98/attachment.pdf>
>>
>> ------------------------------
>>
>> _______________________________________________
>> Openexr-user mailing list
>> Openexr-***@nongnu.org
>> https://lists.nongnu.org/mailman/listinfo/openexr-user
>>
>>
>> End of Openexr-user Digest, Vol 79, Issue 2
>> *******************************************
>
> _______________________________________________
> Openexr-user mailing list
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