Am 19.06.2013 20:58, schrieb Matt Feifarek:
>
> On Sun, Jun 16, 2013 at 12:18 PM, Julian J. M. <[email protected]
> <mailto:[email protected]>> wrote:
>
>
>     I've sent some pictures to print (3 different online shops), and
>     they resulted quite darker than what I see on screen. A lot of dark
>     zones detail is lost. All 3 with very similar results.
>
> I've had the same experience; I have the ICC for the printer / paper
> combination from the service I use. I have a calibrated monitor. I do
> soft-proof, I export with a good profile (ProPhoto)...
>
> ... AND, the prints all come out too dark.
>
> I've been guessing that the prints are "correct" but that the simple
> fact of luminance-based color versus pigment-based color is the culprit.
> Maybe under extremely bright and direct sunlight, the prints will look
> "right".
>
> It's a bummer; you try and do everything right and scientifically, and
> in the end, you're still just trying "well, make it 5% brighter and see
> how it looks".
>

Color management tends to be an error prone issue. Even if you think 
everything is setup correctly, you might haven just fallen into a pit.

In your specific case, are you sure that the vcgt of your monitor 
profile was correctly loaded into the display driver? Any color managed 
software - including darktable - can only take care of the color 
rendering part. The adaptation of monitor gamma is in the duty of your 
display driver. If it fails you are working on a wrong monitor gamma and 
all images are displayed too bright or too dark.

Argyllcms comes with a handy tool called dispwin. With option -V you can 
check if the loaded vcgt fits to the one in your monitor profile. Any 
discrepancy means that something went wrong.

Ulrich



------------------------------------------------------------------------------
This SF.net email is sponsored by Windows:

Build for Windows Store.

http://p.sf.net/sfu/windows-dev2dev
_______________________________________________
Darktable-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/darktable-users

Reply via email to