How to create a precise curve?

Hello folks,

Is there a way in GIMP to enter manually the input and output values of a color curve like in Photoshop.
I’m really missing this:
curves_IO

It’s driving me a bit nuts :slight_smile:

I have to build a curve to calibrate the paper i will use to print some cyanotypes from digital negative and i would have love to make it simple but if it’s not possible i’ll go back to photoshop, or try to master the mouse to edit the points manually :slight_smile:

Cheers

Jean-Philippe.

1 Like

You can make the curve window as large as you want to assist with mouse precision.

Or you can manually or automatically edit the text file of the curve presets: ~.gimp-2.8\tool-options\gimp-curves-tool.settings

Thanks a lot for the tricks!

@jpbako now file a feature request for that in the correct place: