Re: Openexr-user Digest, Vol 79, Issue 2
Anders Langlands <[email protected]> Wed, 25 Sep 2013 19:25:38 +0000
| Newsgroups | gmane.comp.video.openexr.user |
|---|---|
| Message-ID | <[email protected]> |
--===============2734558389527475889== Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_1AFA8E0CC69346B99481302EB386CB60movingpicturecom_" --_000_1AFA8E0CC69346B99481302EB386CB60movingpicturecom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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 - Montr=E9al - Vancouver - Los Angeles - Bangalore moving-picture.com/film<http://moving-picture.com/film> On 25 Sep 2013, at 15:09, "Lucien Fostier" <[email protected]<mailto:= [email protected]>> wrote: Hi Florian, your link doesnt seem to work, or is it just me? Cheers lucien Envoy=E9 de mon iPhone Le 25 sept. 2013 =E0 20:11, [email protected]<mailto:openexr-= [email protected]> a =E9crit : Send Openexr-user mailing list submissions to [email protected]<mailto:[email protected]> 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 [email protected]<mailto:[email protected]> You can reach the person managing the list at [email protected]<mailto:[email protected]> 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 <[email protected]<mailto:[email protected]>> To: "[email protected]<mailto:[email protected]>" <openexr-de= [email protected]<mailto:[email protected]>>, openexr-user <[email protected]<mailto:[email protected]>> Subject: [Openexr-user] Interpreting Deep Message-ID: <[email protected]<mailto:[email protected]>> Content-Type: text/plain; charset=3D"iso-8859-1"; Format=3D"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/2013092= 4/841d4b98/attachment.pdf> ------------------------------ _______________________________________________ Openexr-user mailing list [email protected]<mailto:[email protected]> https://lists.nongnu.org/mailman/listinfo/openexr-user End of Openexr-user Digest, Vol 79, Issue 2 ******************************************* _______________________________________________ Openexr-user mailing list [email protected]<mailto:[email protected]> https://lists.nongnu.org/mailman/listinfo/openexr-user --_000_1AFA8E0CC69346B99481302EB386CB60movingpicturecom_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <html> <head> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-= 1"> </head> <body dir=3D"auto"> <div>Gives me a "not found on this server" error here. <br> <br> <div><span style=3D"-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875)= ; -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-co= mposition-frame-color: rgba(77, 128, 180, 0.230469); ">Anders Langlands, VF= X Supervisor</span></div> <div><span style=3D"-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875)= ; -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-co= mposition-frame-color: rgba(77, 128, 180, 0.230469); ">MPC Film</span></div= > <div><font style=3D"background-color: rgba(255, 255, 255, 0);"> <div> <div><b><span style=3D"font-weight: normal; "><a href=3D"tel:+1%20438%2= 0990%205557" x-apple-data-detectors=3D"true" x-apple-data-detectors-type=3D= "telephone" x-apple-data-detectors-result=3D"0">+1 438 990 5557</a></sp= an></b></div> London - Montr=E9al - Vancouver - Los Angeles - Bangalore </div> <div><font><a href=3D"http://moving-picture.com/film" target=3D"_blank">mov= ing-picture.com/film</a></font></div> </font></div> </div> <div><br> On 25 Sep 2013, at 15:09, "Lucien Fostier" <<a href=3D"mailto:= [email protected]">[email protected]</a>> wrote:<br> <br> </div> <blockquote type=3D"cite"> <div><span>Hi Florian,</span><br> <span></span><br> <span>your link doesnt seem to work, or is it just me?</span><br> <span></span><br> <span>Cheers</span><br> <span></span><br> <span>lucien</span><br> <span></span><br> <span>Envoy=E9 de mon iPhone</span><br> <span></span><br> <span>Le 25 sept. 2013 =E0 20:11, <a href=3D"mailto:openexr-user-request@no= ngnu.org"> [email protected]</a> a =E9crit :</span><br> <span></span><br> <blockquote type=3D"cite"><span>Send Openexr-user mailing list submissions = to</span><br> </blockquote> <blockquote type=3D"cite"><span> <a href=3D"mailto:openexr-user@= nongnu.org">[email protected]</a></span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>To subscribe or unsubscribe via the World W= ide Web, visit</span><br> </blockquote> <blockquote type=3D"cite"><span> <a href=3D"https://lists.nongnu= .org/mailman/listinfo/openexr-user">https://lists.nongnu.org/mailman/listin= fo/openexr-user</a></span><br> </blockquote> <blockquote type=3D"cite"><span>or, via email, send a message with subject = or body 'help' to</span><br> </blockquote> <blockquote type=3D"cite"><span> <a href=3D"mailto:openexr-user-= [email protected]">[email protected]</a></span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>You can reach the person managing the list = at</span><br> </blockquote> <blockquote type=3D"cite"><span> <a href=3D"mailto:openexr-user-= [email protected]">[email protected]</a></span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>When replying, please edit your Subject lin= e so it is more specific</span><br> </blockquote> <blockquote type=3D"cite"><span>than "Re: Contents of Openexr-user dig= est..."</span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>Today's Topics:</span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span> 1. Interpreting Deep (Florian Kainz)<= /span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>-------------------------------------------= ---------------------------</span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>Message: 1</span><br> </blockquote> <blockquote type=3D"cite"><span>Date: Tue, 24 Sep 2013 15:10:38 -0700</span= ><br> </blockquote> <blockquote type=3D"cite"><span>From: Florian Kainz <<a href=3D"mailto:k= [email protected]">[email protected]</a>></span><br> </blockquote> <blockquote type=3D"cite"><span>To: "<a href=3D"mailto:openexr-devel@n= ongnu.org">[email protected]</a>" <<a href=3D"mailto:openexr= [email protected]">[email protected]</a>>,</span><br> </blockquote> <blockquote type=3D"cite"><span> openexr-user = <<a href=3D"mailto:[email protected]">[email protected]</a>&= gt;</span><br> </blockquote> <blockquote type=3D"cite"><span>Subject: [Openexr-user] Interpreting Deep</= span><br> </blockquote> <blockquote type=3D"cite"><span>Message-ID: <<a href=3D"mailto:52420DDE.= [email protected]">[email protected]</a>></span><br> </blockquote> <blockquote type=3D"cite"><span>Content-Type: text/plain; charset=3D"i= so-8859-1"; Format=3D"flowed"</span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>To the more mathematically inclined OpenEXR= users and developers:</span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>If you can spare the time, I would like you= to read the attached</span><br> </blockquote> <blockquote type=3D"cite"><span>document and give me feedback on it.</span>= <br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>The IlmImf library defines the file format = for deep images and it</span><br> </blockquote> <blockquote type=3D"cite"><span>provides convenient methods for writing dee= p image files. However,</span><br> </blockquote> <blockquote type=3D"cite"><span>the library and the existing documentation = (as of September 2013)</span><br> </blockquote> <blockquote type=3D"cite"><span>do not explain in detail how deep images ar= e meant to be interpreted.</span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>The attached document attempts to describe = what the deep data in a file</span><br> </blockquote> <blockquote type=3D"cite"><span>mean, and how compositing of deep images wo= rks. The document also points</span><br> </blockquote> <blockquote type=3D"cite"><span>out numerical issues with the representatio= n of volumetric samples, and</span><br> </blockquote> <blockquote type=3D"cite"><span>proposes an alternate volumetric sample rep= resentation that would address</span><br> </blockquote> <blockquote type=3D"cite"><span>those issues.</span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>I believe that agreement on the interpretat= ion of deep OpenEXR files</span><br> </blockquote> <blockquote type=3D"cite"><span>is desirable because it enables compatibili= ty among different vendors'</span><br> </blockquote> <blockquote type=3D"cite"><span>image compositing applications. In ad= dition, anyone developing algorithms</span><br> </blockquote> <blockquote type=3D"cite"><span>such as lossy compression would be able to = rely on a standardized</span><br> </blockquote> <blockquote type=3D"cite"><span>interpretation of a file's contents.</span>= <br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>Florian</span><br> </blockquote> <blockquote type=3D"cite"><span>-------------- next part --------------</sp= an><br> </blockquote> <blockquote type=3D"cite"><span>A non-text attachment was scrubbed...</span= ><br> </blockquote> <blockquote type=3D"cite"><span>Name: Deep Image Data 09-24-13.pdf</span><b= r> </blockquote> <blockquote type=3D"cite"><span>Type: application/pdf</span><br> </blockquote> <blockquote type=3D"cite"><span>Size: 892494 bytes</span><br> </blockquote> <blockquote type=3D"cite"><span>Desc: not available</span><br> </blockquote> <blockquote type=3D"cite"><span>URL: <<a href=3D"http://lists.nongnu.org= /archive/html/openexr-user/attachments/20130924/841d4b98/attachment.pdf">ht= tp://lists.nongnu.org/archive/html/openexr-user/attachments/20130924/841d4b= 98/attachment.pdf</a>></span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>------------------------------</span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>___________________________________________= ____</span><br> </blockquote> <blockquote type=3D"cite"><span>Openexr-user mailing list</span><br> </blockquote> <blockquote type=3D"cite"><span><a href=3D"mailto:[email protected]">= [email protected]</a></span><br> </blockquote> <blockquote type=3D"cite"><span><a href=3D"https://lists.nongnu.org/mailman= /listinfo/openexr-user">https://lists.nongnu.org/mailman/listinfo/openexr-u= ser</a></span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span></span><br> </blockquote> <blockquote type=3D"cite"><span>End of Openexr-user Digest, Vol 79, Issue 2= </span><br> </blockquote> <blockquote type=3D"cite"><span>*******************************************= </span><br> </blockquote> <span></span><br> <span>_______________________________________________</span><br> <span>Openexr-user mailing list</span><br> <span><a href=3D"mailto:[email protected]">[email protected]</a= ></span><br> <span><a href=3D"https://lists.nongnu.org/mailman/listinfo/openexr-user">ht= tps://lists.nongnu.org/mailman/listinfo/openexr-user</a></span><br> </div> </blockquote> </body> </html> --_000_1AFA8E0CC69346B99481302EB386CB60movingpicturecom_-- --===============2734558389527475889== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Openexr-user mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/openexr-user --===============2734558389527475889==--