Re: [darktable-devel] How does one re-open a bug in redmine?

Christian Tellefsen Fri, 19 Oct 2012 13:42:09 -0700

Fixed: reopened

Christian


Richard Levitte <rich...@levitte.org> wrote:

>On issue #9013, I was adviced to re-open it if I have updated presets
>with the latest firmware of my camera.  I have and made an update.
>
>Unfortunately, I can't find a way to re-open that issue.  Please help.
>
>Cheers,
>Richard
>
>-- 
>Richard Levitte                         rich...@levitte.org
>                                        http://richard.levitte.org/
>
>"Life is a tremendous celebration - and I'm invited!"
>-- from a friend's blog, translated from Swedish
>
>
>
>------------------------------------------------------------------------
>
>From: redm...@darktable.org
>Sent: Thu Oct 18 16:33:09 CEST 2012
>Subject: [darktable - Bug #9013] (Closed: upstream) White balance
>module:        presets for Canon 600D incorrect
>
>
>Issue #9013 has been updated by Pascal de Bruijn.
>
>Status changed from New to Closed: upstream
>Priority changed from Medium to Low
>
>We get the white balance presets from the UFRaw project.
>
>The white balance presets are occasionally changed by the vendors
>between firmware revisions.
>
>So make sure you have the latest camera firmware, and if it still
>differs (assuming the white balance presets were based on an earlier
>firmware), you can submit new white balance presets to the UFRaw
>project and us.
>
>This script might be helpful (it's not very well maintained, so you
>might need to ignore some warnings here and there 2&gt;/dev/null and
>such):
>http://ufraw.cvs.sourceforge.net/viewvc/ufraw/ufraw/wb_extract.pl?view=markup
>
>Feel free to re-open this bug if you have updated presets using the
>latest camera firmware (and report which firmware version you used).
>
>
>----------------------------------------
>Bug #9013: White balance module: presets for Canon 600D incorrect
>http://www.darktable.org/redmine/issues/9013#change-21668
>
>* Author: Richard Levitte
>* Status: Closed: upstream
>* Priority: Low
>* Assignee: 
>* Category: Darkroom
>* Target version: 
>* Affected Version: git development version
>----------------------------------------
>Hello,
>
>I had a closer look at the presets used for my Canon 600D, and noticed
>that when I would use the daylight preset with an image that was taken
>with my camera set to daylight, the 'temperature in' slider would
>differ from the 'temperature out' slider.  Not enormously, but still
>enough to matter.
>
>This had me take a closer look at the presets (src/iop/wb_presets.c)
>for the 600D and compare it to the settings the camera will give me.
>
>>From exif data:
>
>
>WB RGGB Levels Daylight         : 2289 1024 1024 1651
>Color Temp Daylight             : 5200
>WB RGGB Levels Shade            : 2655 1024 1024 1411
>Color Temp Shade                : 7000
>WB RGGB Levels Cloudy           : 2467 1024 1024 1522
>Color Temp Cloudy               : 6000
>WB RGGB Levels Tungsten         : 1636 1024 1024 2467
>Color Temp Tungsten             : 3200
>WB RGGB Levels Fluorescent      : 2005 1024 1024 2315
>Color Temp Fluorescent          : 3729
>WB RGGB Levels Flash            : 2570 1024 1024 1500
>Color Temp Flash                : 6320
>
>Calculating these to floats with green being 1.0 (divide all numbers
>with 1024), it gives us this:
>
>Daylight:     2.2353516 1.0 1.6123047
>Shade:        2.5927734 1.0 1.3779297
>Cloudy:       2.4091797 1.0 1.4863281
>Tungsten:     1.5976563 1.0 2.4091797
>Fluorescent:  1.9580078 1.0 2.2607422
>Flash:        2.5097656 1.0 1.4648438
>
>Looking at wb_presets.c, I find this:
>
>
>{ &quot;Canon&quot;, &quot;EOS 600D&quot;, Daylight, 0,                { 
>2.1602, 1,
>1.5752, 0 } },
>{ &quot;Canon&quot;, &quot;EOS 600D&quot;, Shade, 0,           { 2.5098, 1,
>1.3418, 0 } },
>{ &quot;Canon&quot;, &quot;EOS 600D&quot;, Cloudy, 0,          { 2.3330, 1,
>1.4502, 0 } },
>{ &quot;Canon&quot;, &quot;EOS 600D&quot;, Tungsten, 0,                { 
>1.5371, 1,
>2.3594, 0 } },
>{ &quot;Canon&quot;, &quot;EOS 600D&quot;, WhiteFluorescent, 0,        {
>1.8789, 1, 2.2402, 0 } },
>{ &quot;Canon&quot;, &quot;EOS 600D&quot;, Flash, 0,           { 2.4268, 1,
>1.4297, 0 } },
>
>As you can see, there's quite a difference.
>
>
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>
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