Hi list
I am trying to benchmark a noiseprofile [1], as described here [2] under
chapter "run a benchmark (optional)"
I am starting darktable from git (build 1.7.0+1262~gb2b3ca0) like this:
/opt/darktable/bin/darktable --library /tmp/test.db --noiseprofiles
/home/urs/foto/20150412-DarktableNoiseProfileOlympusEPL7_Try4/presets.json
-d all > darktabledebug.txt
Here comes my problem:
After switching to darkroom, my noise profile does not show up in the
"denoise (profiled)" module. There is just the "generic poissonian"
noise profile.
From the debug output I see that my noise profile is getting loaded:
$ grep "\[noiseprofile" darktabledebug.txt
[noiseprofile] loading noiseprofiles from
`/home/urs/foto/20150412-DarktableNoiseProfileOlympusEPL7_Try4/presets.json'
[noiseprofile] found 9 makers
My noise profile looks like this:
$ head
/home/urs/foto/20150412-DarktableNoiseProfileOlympusEPL7_Try4/presets.json
-n 8
{
"version": 0,
"noiseprofiles": [
{
"maker": "OLYMPUS IMAGING CORP.tE-PL7tE-PL7 iso
100t100t7.25526184033837e-06, 3.09095649933772e-06,
5.68869078358578e-06t1.2214043558469e-08, 7.84284845742054e-09,
1.19766825702874e-08",
"models": [
]
},
There are 8 more markers like this in the file, one for every ISO
setting, from ISO 100 up to ISO 25600.
The raw files contain the same EXIF info as in the noiseprofile:
$ exiv2 P4120470.ORF | grep -i 'Camera\|ISO'
Camera make : OLYMPUS IMAGING CORP.
Camera model : E-PL7
ISO speed : 25600
My question is:
What did I do wrong that my profile does not show up in my tests with
Darktable? Seems that I'm not understanding the whole process, I can not
find what I am missing. Any pointers are welcome.
Urs
[1]
https://www.dropbox.com/s/e7we55r8ru5p14h/dt-noiseprofile-20150412.tar.gz?dl=0
[2] http://www.darktable.org/2012/12/profiling-sensor-and-photon-noise/
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