rawtherapee.com is an awesome corss OS photo-picture-post-processing program (THANKS ALL INVOLVED! :D)

“raw image converter and digital photo processor”

“RawTherapee is an advanced program for developing raw photos and for processing non-raw photos. It is non-destructive, makes use of OpenMP, supports all the cameras supported by dcraw and carries out its calculations in a high precision 32bit floating point engine. RawTherapee supports JPEG, PNG, and TIFF as output format for processed photos.” src: https://packages.debian.org/stable/rawtherapee


lsb_release -d;# tested on
Description: Debian GNU/Linux 11 (bullseye)
# but also on Debian 12 (comes with rawtherapee 5.9)
su - root
apt update
apt install rawtherapee

open up an image

usually r-click on the image -> open with -> RawTherapee

all the magic happens on the right pane buttons side marked in orange: click through all tabs and play with the settings

gimp color optimization: before






RawTherapee gave the better results (enhancing colors WHILE keeping the details, at least with the stork picture) with those pictures, but with Gimp it is also possible to enhance some (not all) pictures like this:

  • open up an image
  • in the top menu go: Colors -> Levels:
    • warning: too much contrast will lose details!

also a bit of sharpening: Filters -> Enhance -> Sharpen

it can even do batch processing:

  • once the user is happy with a setting it is possible to save it as “profile”
  • and then apply it to all pictures inside a folder
  • to do that: open rawtherapee WITHOUT passing a picture
  • it will go into “folder” mode
  • navigate to folder where pics that need batch processing are and follow the tutorial:


Smart Phone Photography – Water Pearls on Grass

S21 Ultra SmartPhone photography – spring is coming – how to improve colors and sharpness with Gimp

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