heya,
that camera seems to do some preprocessing starting at iso 1600, higher iso
doesn't really work in the graphs. i guess it's better than nothing, so
i'll push. keep in mind dark areas might stay more noisy than you'd expect.
thanks for taking these test shots.
-jo
On Tue, Dec 3, 2013 at 7:59 AM, Rodney Heyd <[email protected]> wrote:
> Hello,
>
> I'm new to Darktable and the RAW processing workflow. There's a bit of a
> learning curve, but I'm impressed with Darktable, so far. I have an
> Olympus e-pm1 with an underwater housing that I'm using for taking pictures
> while scuba diving, and I'd like to color correct my pictures.
>
> With that in mind, I'm trying to create a noise profile for the camera.
> I've followed the noise profiling instructions and generated the presets
> via the gen-profile script. Here is a link to the tar archive of the
> presets I generated:
>
>
> http://pirlwww.lpl.arizona.edu/~rod/darktable/dt-noiseprofile-20131201.tar.gz
>
> A couple of notes/questions: 1. Do the profiles I've generated look
> reasonable? 2. According to the benchmark script, the SNR doesn't seem to
> have improved much after applying the presets. Do I need to take another
> set of calibration images and generated the profile? Visually, I do see
> some improvement after applying these presets to test images...
>
> Thanks,
>
> Rod
>
>
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