I am sure it must be possible using the Color Zones and or Color Balance Modules, but no matter what I do I cannot seem to get it to work on just the yellows or blues. I have done a good bit of searching, and playing around with various filters in Darktable, but I cannot seem to be able to adjust the yellows or blues separately. Similarly for the blues (mainly the sky). Just slide the yellows and you can make the foliage lighter or darker. This makes adjusting the sky and foliage easy because of the colour separation in the original image. In Photoshop, but not in Gimp, or Krita, you can create a Black and White Adjustment Layer, then there are sliders for Reds, Yellows, Greens, Cyans, Blues and Magentas. They can of course be converted to Black and White. DxO PureRAW 3 aims to come to their rescue. Adobe Photoshop and Lightroom impress in a lot of ways, but their noise reduction lags the competition and their lens corrections lack a real-world basis. your link (they were definitely made from the same author. The images are in colour, and with my particular filter are mainly Blues and Yellows. X-H1 Astia - Getting those delicious Fuji colors in Darktable many images resp. I only use Linux, so do not have and have no wish to purchase Adobe Photoshop. I shoot in RAW, so find Darktable an essential part of my workflow.

I indulge in Infrared Photography with a specially converted DSLR.

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