11-14-2019, 11:19 AM (This post was last modified: 11-14-2019, 11:52 AM by Ofnuts.)
My own take on luminosity masks. While it pays its dues to PatDavid's canonical tutorial on the subject, it creates the same masks using a different and (hopefully) more efficient method that allows:
to create a luminosity selection from the current layer in one single click (or one keystroke if you defined shortcuts)
in a future version, to define your own masks
As usual the script can be found here. Restrictions in this version:
* Only PatDavid's masks, no custom masks yet
* Only for Gimp 2.10 (seems to hit a bug in 2.8)
11-14-2019, 03:13 PM (This post was last modified: 11-14-2019, 03:14 PM by Krikor.)
Comparing the expected result (left) with the one obtained, one can notice a slight difference in the middle tones. (Maybe because I created xcf in version 2.10.12 and tested this script on 2.10.14)
But in DDD the difference is quite big.
Lights
Mids
Darks
One can also ask what is the "expected" value, since no script strictly follows the original tutorial.
After the change, the DDD is as expected! :-) (not speaking strictly)
I have tried to say that similar to the results obtained with both the Saulgoode script and those presented on Pat David's page.
This script gives me a lot of fun, thanks so much for updating it Ofnuts!
11-16-2019, 11:09 PM (This post was last modified: 11-16-2019, 11:55 PM by Krikor.)
(11-16-2019, 06:14 PM)Ofnuts Wrote: Uploaded a new version. Added feature; define your own mask(s) in a side file. Enjoy.
Ofnuts,
But what if the curve also has points on other RGB channels?
The image shows the configuration of my curve. If I only use the values from line # 9 after Points 34, would it be enough for the mask to represent the curve?
I defined my mask without using the points of the Red, Blue and Green curves. There was a closeness to what I expected.