Google| Subject | Re: Any Minolta/Sony users using UFRaw and GIMP? |
| From | Alan Browne |
| Date | 04/05/2014 23:31 (04/05/2014 17:31) |
| Message-ID | <id-dnQJU_6bV693OnZ2dnUVZ_uWdnZ2d@giganews.com> |
| Client | |
| Newsgroups | rec.photo.digital |
| Follows | Jeffery Small |
| Followups | Floyd L. Davidson (50m) Bob (2h) > Alan Browne |
On 2014.04.05, 15:21 , Jeffery Small wrote:
Jeffery SmallI've kicked The Gimp off my system, but back when it was loaded I had no issues loading raw files via UFRaw. (Sony a900). (Actually at some point I had other issues with UFraw running at all - but fixed after some fanagling - don't recall if that was under Linux or OS X).
I thought I would post this to the digital group to see if there were any Minolta or Sony users who used the UFRaw converter software with their raw image files. I have been having serious problems and wanted to see if this was observed by others. Here is my story.
Ubuntu 13.10 system running on an Asus U56E system UFRaw ver. 0.19.2 Dcraw ver. 9.19.1 GIMP ver. 2.8.6 Darktable ver. 1.2.3 Shotwell ver. 0.15.0
When attempting to load Minolta (mrw) and Sony (arw) raw image files into GIMP, the UFRaw plug-in is not properly processing them. The following webpage has images which demonstrate the problem:
http://smallthoughts.com/photos/misc/GIMP/index.html
The raw files are being imported with distorted color, exposure and contrast. However, as the additional images show, other programs such as Darktable and Shotwell and the Minolta/Sony editing programs (on Windows) are importing and displaying these raw files properly.
The default (or however you have them) UFRaw settings might not be "nominal" - so go over them one by one and attempt to find if any are really way off. Set the channel multipliers to 1 (to begin), temperature to 5000K (more or less) and so on. It may just be your defaults are too wacky.
(I notice for example that the WB setting is "0" in your examples. Not sure if that's a correct or useful WB value in The Gimp. Likewise your channel multiplier values @ 4 and 2 in the 2nd/3rd examples may be quite a way off - or not).
All that said, when you're serious about photography and raw you should seriously get away from Linux and The Gimp.
-- Those who have reduced our privacy, whether they are state or commercial actors, prefer that we do not reduce theirs. - Jaron Lanier, Scientific American, 2013.11.
04/05/2014-
