[Bug 17505] No High Dynamic Range Image (HDRI) file formats allowed on Commons
https://bugzilla.wikimedia.org/show_bug.cgi?id=17505 Brion Vibber changed: What|Removed |Added Blocks|32101 | -- You are receiving this mail because: You are the assignee for the bug. You are on the CC list for the bug. ___ Wikibugs-l mailing list Wikibugs-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
[Bug 17505] No High Dynamic Range Image (HDRI) file formats allowed on Commons
https://bugzilla.wikimedia.org/show_bug.cgi?id=17505 Nemo changed: What|Removed |Added Blocks||32101 -- You are receiving this mail because: You are the assignee for the bug. You are on the CC list for the bug. ___ Wikibugs-l mailing list Wikibugs-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
[Bug 17505] No High Dynamic Range Image (HDRI) file formats allowed on Commons
https://bugzilla.wikimedia.org/show_bug.cgi?id=17505 Jean-Fred changed: What|Removed |Added Blocks||42725 -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes. ___ Wikibugs-l mailing list Wikibugs-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
[Bug 17505] No High Dynamic Range Image (HDRI) file formats allowed on Commons
https://bugzilla.wikimedia.org/show_bug.cgi?id=17505 --- Comment #4 from Brion Vibber 2012-07-12 19:38:51 UTC --- Please do -- this is the sort of specialized area we can hopefully get a smallish project moving. :) Is OpenEXR standard/common enough at this point that we could mandate it as "the" HDR format? If so we can probably go with that. There are a couple levels of support we can offer: 1) very limited -- allow uploads but don't show them inline. (Useful to upload "original version" files). Need to be able to verify file type, not much else. 2) JPEG thumbnail support -- convert to non-HDR JPEGs for inline display. Need to be able to extract image width/height and use either ImageMagick or other software to do basic conversion. Downside: no actual HDR view inline, you'll be clipped. 3) Plugin view support -- allow using browser plugins (??) for native HDR view. Not sure what's available or what that implies. 4) JavaScript-based partial HDR viewer with controls not sure how much sense this makes, but could allow for viewing and live adjustment of the dynamic range without browser plugins. :) Thoughts anyway... -- Configure bugmail: https://bugzilla.wikimedia.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug. You are on the CC list for the bug. ___ Wikibugs-l mailing list Wikibugs-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
[Bug 17505] No High Dynamic Range Image (HDRI) file formats allowed on Commons
https://bugzilla.wikimedia.org/show_bug.cgi?id=17505 Rd232 changed: What|Removed |Added CC||rd...@hotmail.com --- Comment #3 from Rd232 2012-07-11 20:14:52 UTC --- It's been three years, and HDRI is becoming more and more common (some cameras even do it automatically now). Can we restart this discussion? -- Configure bugmail: https://bugzilla.wikimedia.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug. You are on the CC list for the bug. ___ Wikibugs-l mailing list Wikibugs-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
[Bug 17505] No High Dynamic Range Image (HDRI) file formats allowed on Commons
https://bugzilla.wikimedia.org/show_bug.cgi?id=17505 --- Comment #2 from proxlr...@gmail.com 2009-02-17 20:17:28 UTC --- 1) I am not aware of any patent issues with either the two file formats or tone mapping operators. 2) If by "working" you mean libraries for reading the file formats: * You don't need any for RGBE because the file format is trivial. * There is a library to read OpenEXR. The OpenEXR home page [1] says "ILM has released OpenEXR as free software. [...] The OpenEXR software distribution is now licensed under the modified BSD license" If you mean libraries for tone mapping: * qtpfsgui [2] is a software under GPL which includes different tone mapping operators, but the implementation may be of doubtful quality. * Many of the so-called "global" tone mapping algorithms such as [4] or [5]/[6] are easy to implement on your own because they just apply a logarithm-like formula over each pixel. The source code in [6] has very liberal licensing terms. If you mean programs to display HDR images, there is HDR View, OpenEXR Viewer, Jahplayer or Adobe Bridge, to name a few. 3) Global tone mapping algorithms are quite fast because they work independently over each pixel, and a good compiler can make use of SIMD. According to [3], Ward's scale factor [4] is the fastest, and took ~1 second to render a 1,600 x 1,200 image on an Apple iBook G3 running at 800 MHz. [1] http://www.openexr.com/ [2] http://qtpfsgui.sourceforge.net/sfproject.php [3] Erik Reinhard et al.: "High Dynamic Range Imaging", p. 358. Morgan Kaufmann, 2006. [4] Greg Ward: "A contrast-based scalefactor for luminance display", in "Graphics Gems IV", pp. 415-421. Academic Press Professional, 1994. [5] http://www.cs.utah.edu/~reinhard/cdrom/source.html [6] http://www.cs.ucf.edu/~reinhard/Reinhard02/ -- Configure bugmail: https://bugzilla.wikimedia.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug. You are on the CC list for the bug. ___ Wikibugs-l mailing list Wikibugs-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
[Bug 17505] No High Dynamic Range Image (HDRI) file formats allowed on Commons
https://bugzilla.wikimedia.org/show_bug.cgi?id=17505 Brion Vibber changed: What|Removed |Added CC||br...@wikimedia.org --- Comment #1 from Brion Vibber 2009-02-17 07:04:35 UTC --- A few background items to fill in: * Any standardization/patent issues? http://en.wikipedia.org/wiki/OpenEXR indicates it's an open file format with open source implementations, and doesn't mention any patent issues. http://en.wikipedia.org/wiki/RGBE_image_format seems a little less clear on standardization or current usage, and again no mention of any patent issues (either positive or negative). * Recommended standard software for working with it? * Any performance issues with rendering to in-browser view? -- Configure bugmail: https://bugzilla.wikimedia.org/userprefs.cgi?tab=email --- You are receiving this mail because: --- You are the assignee for the bug. You are on the CC list for the bug. ___ Wikibugs-l mailing list Wikibugs-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
