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Camera Support #11053

Incorrect white-balance with Nikon D7200

Added by Saint Germain about 3 years ago. Updated 8 months ago.

Status:
Closed: invalid
Priority:
Low
Assignee:
-
Category:
-
Target version:
Start date:
06/11/2016
Due date:
% Done:

0%

Affected Version:
2.0.4

Description

The JPEG directly generated by the Nikon D7200 has always an almost correct white-balance (a little reddish though).
The JPEG generated by Darktable 2.0.4 with the default options are biased toward green (see example).

I've attached an example to demonstrate the issue.

DSC_2477_nikon.jpg - Generated directly by Nikon D7200 (701 KB) Saint Germain, 06/11/2016 05:42 PM

DSC_2477.NEF.xmp (2.36 KB) Saint Germain, 06/11/2016 05:42 PM

DSC_2477_darktable.jpg - Generated by Darktable from RAW (601 KB) Saint Germain, 06/11/2016 05:59 PM

DSC_2477_DxO.jpg - Generated by DxO Optics from RAW (988 KB) Saint Germain, 06/11/2016 07:19 PM


Related issues

Related to darktable - Camera Support #10462: Color Profile for Nikon d5100 Closed: invalid 05/13/2015
Related to darktable - Bug #10134: red cast on photos from Nikon D800 Closed: invalid 10/04/2014
Related to darktable - Bug #9169: Nikon D3100 Color rendition Closed: invalid 12/31/2012

History

#2 Updated by Saint Germain about 3 years ago

RAW uploaded here :
http://dl.free.fr/bWt4uLqJm

#3 Updated by Saint Germain about 3 years ago

#4 Updated by Ryan Gillette about 3 years ago

I had to tackle this for my self for the Canon 80D. If you know a little bit about CLI. You can add support for your self. There is a script in the Darktable source called dngmeta.sh under the tools folder. It will give you a start on to add support. :)

#5 Updated by Stefan Schöfegger almost 3 years ago

Your files are not available anymore. Please upload raw samlpes (14bit and 12bit) to rawsamples.ch and I will have a look.

#6 Updated by Roman Lebedev almost 3 years ago

Saint Germain wrote:

The JPEG directly generated by the Nikon D7200 has always an almost correct white-balance (a little reddish though).
The JPEG generated by Darktable 2.0.4 with the default options are biased toward green (see example).

I've attached an example to demonstrate the issue.

That is most definitely not the wb, but some other camera-based enhancement.

#7 Updated by Roman Lebedev almost 3 years ago

#8 Updated by Roman Lebedev almost 3 years ago

  • Related to Bug #10134: red cast on photos from Nikon D800 added

#9 Updated by Roman Lebedev almost 3 years ago

  • Related to Bug #9169: Nikon D3100 Color rendition added

#10 Updated by Roman Lebedev almost 3 years ago

See all the issues i liked as Related.
I'm pretty sure this will be "closed: invalid" too..

#11 Updated by Saint Germain almost 3 years ago

I've uploaded a new example (DSC_4860.NEF and JPEG) to rawsamples.ch.
We can better see the problem in this example.
I've also uploaded a copy here :
http://dl.free.fr/obJemo53Y (JPEG)
http://dl.free.fr/m1Hd0icRf (NEF)

You can pay especially attention to the wall on the left (which is supposed to be white) and to the top of the bed (which is supposed to be light mole/brown color).
It's almost impossible to get the correct color with the provided base curves.

I am also not alone in having this problem with Nikon pictures as demonstrated by the current running thread in the mailing lists :
https://www.mail-archive.com/darktable-user@lists.darktable.org/msg00805.html
https://www.mail-archive.com/darktable-user@lists.darktable.org/msg00662.html

#12 Updated by Roman Lebedev almost 3 years ago

While here, can you take picture of anything recognizable with D7200 with mode 14bit-uncompressed and mode 12bit-uncompressed.
Upload it here, and to rawsamples.ch (do name the files appropriately)

#13 Updated by Roman Lebedev almost 2 years ago

  • Status changed from New to Closed: invalid

Nowadays we do have the full sample set for that camera on raw.pixls.us
But i still don't believe this is wb issue. It is probably a basecurve problem.
E.g. you can follow http://www.darktable.org/2016/05/colour-manipulation-with-the-colour-checker-lut-module/ to mimic in-camera rendering.

#14 Updated by Roman Lebedev almost 2 years ago

  • Target version set to 2.4.0

#15 Updated by Jan Hrdina 8 months ago

Hi, I used to have exactly the same problems on my D5100. Greenish tint, weird skintones, lack of distinction between yellow and orange hues...

I simply bought an IT8 color checker for equivalent of $30 and created LUT color profiles using the tutorial at http://www.darktable.org/2016/05/colour-manipulation-with-the-colour-checker-lut-module/. The results and improvement is amazing.

Also creating a custom basecurve helped with restoring overexposed parts...

See this example. There is no other module influencing color enabled (no color zones, no color correction, no split-toning:

Final edit with custom LUT enabled:
http://www.imagehosting.cz/images/dsc8766.jpg

Exacly the same final edit but with LUT disabled (your "green" situation):
http://www.imagehosting.cz/images/dsc8766nol.jpg

You can find all info and my created LUTs and basecurves at
https://github.com/jhrdina/darktable-nikon-d5100-profiles

D5100 and D7200 are not that far from each other, maybe my LUTs could work even for you without buying anything. They are just .dtstyle preset files so they are easy to try out...

Also available in: Atom PDF