[KimDaBa] KimDaBa 2.0 is released.
shawn-kimdaba at willden.org
Sun Oct 31 22:36:26 GMT 2004
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On Saturday 30 October 2004 10:58 pm, jedd wrote:
> There's a bunch of exiftools out there that aren't OSS / free ...
Thanks, I'll look into that. I don't mind non-Free, or non-free software that
runs on Linux.
However, I've run into a couple more obstacles with using RAW images. Maybe
someone has some suggestions?
The first, and biggest, problem is image quality. I cannot seem to make
pictures taken in RAW mode look good! By that I mean I can't produce JPEGs
from them that look as good as the JPEGs I get from the camera. Obviously
it's possible, because whatever post-processing the camera is doing can
certainly be done by my PC, but I haven't found the trick.
Just using dcraw without any options results in an image that is very dim and
quite low in contrast. That's okay, because I can fix it either by adjusting
the gamma setting on dcraw, or by post-processing with the GIMP's levels
tool. I need to experiment to see if there's a process that does a decent
job (similar to what the camera does when producing JPEGs) that I can run
automatically. I don't want to have to adjust every image manually.
Beyond brightness and contrast, the colors I get out of a RAW image are subtly
wrong. All of my test images come out with a little too much red. Whereas
the JPEG from the camera usually produces something that is a reasonably
close match to what my eye perceives directly, the converted RAW images are
too red. I have not been able to find a good way to fix this at all... even
with careful manual adjustment of the colors (and I'm reasonably skilled at
that). I think the camera is applying a tuned color adjustment curve, like
an ICC profile, and gross whole-range color adjustments do a poor job. I
suspect that to get proper colors from my RAW images, I need an appropriate
ICC profile, and some software to apply it (I think I saw a GIMP plugin a
Okay, so I've got lousy brightness, contrast and colors, what's left? Oh,
yeah, sharpness. The converted RAW images are fuzzy. That's not such a
problem, though, an unsharp mask fixes that right up.
So, for any others that routinely work with RAW images, how do you deal with
all of this?
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