Add green color on trees

[Krikor]

(02-18-2024, 03:35 PM)Stephen Liu Wrote:

(02-18-2024, 09:47 AM)Ofnuts Wrote: Two fundamentals problems with the image:

• Color temperature isn't quite right
  
• Not many values to work with in these trees, so any  change there will create blobs
  

My processing:

• Convert image to high-precision
  
• Add a very low HSV noise (just enough V to make the histogram continuous) to avoid being hit by quantization problems
  
• Colors > Color temperature to improve the color temperature (eyeballed it...)
  
• Create a luminosity mask that covers the tree and the lawns (pretty much a dark/midtones one, with the water painted over at the bottom)
  

• Using the mask a a selection, add a slight boost to the Green channel in Curves
  

Thanks for your advice.

It is still not green

The photos attached to this posting were captured by me in River Rhein, Germany, long time ago.  I have no glue to add green color on their trees

Regards

Stephen Liu,

In my attempts, using a combination of the procedures pointed out by rich2005 in post #3 and by Ofnuts in post #11 seems to give good results.

   

In these images I found very prominent magenta tones. So, remembering our friend Sallyanne's tip, I applied the Unpurple filter (G'MIC) to get around this problem.