Camera Support #11675
Noise profile for canon t7i (aliased to eos 800d in cameras)
In order to make this work, I had to replace "EOS Rebel T3i" with "EOS 800D" in presets.json, because of the alias in /darktable/rawspeed/cameras.xml.
#6 Updated by Stefan Schöfegger over 2 years ago
this does not look much different. Please try a complete other setup. Only a small parts of the image need to be over- or underexposed. Bring some objects in the foreground that are correctly exposed (but out of focus)
Also I am not sure if the camera matches the desired noise profile, the results I get so far seem strange.
#7 Updated by Andreas Schneider over 1 year ago
Maybe this tutorial helps to simplify the process: https://pixls.us/articles/how-to-create-camera-noise-profiles-for-darktable/
#8 Updated by Pete Hall over 1 year ago
Andreas, I followed your instructions. Here is the result.
"Rebel T7i" needs to be replaced with "800D" in noiseprofiles.json.
I ran your process on a fresh ubuntu 18.04 install, and had to go back to the pre-requisites in the instructions for compiling dt. git, gcc, make, gnuplot, convertt and darktable-cli aren't enough to compile tools, and I needed exiv2 and gphoto2 in order to run the darktable-gen-noiseprofile script, even though I provided all the images, it wouldn't run without those.
All things considered, the instructions worked great though! Thanks very much! I did find providing two different sizes of holes, as well as a void area in the template help to increase the dynamic range.
#9 Updated by Stefan Schöfegger over 1 year ago
- % Done changed from 20 to 100
- Status changed from Incomplete to Fixed
Applied in changeset darktable|e226642ce731f32805df3907860bce5ba4ec288b.