GIMPHELP.ORG
a tribute and my humble
contribution of brushes,
scripts and tips for the GNU
Image Manipulation Program

Script-Fu -> Gray-Point

This is an adjustable script.
In the below example, I changed the foreground color and choose a lighter-than-average gray, thus making the picture seem much more "high key."

dialog

Before

After

Download

210_color_grey-point.scm

;  This script should be placed 
;  in the user or system-wide script folder.
;
;  Windows Vista/7/8/10)
;  C:\Program Files\GIMP 2\share\gimp\2.0\scripts
;  or
;  C:\Users\YOUR-NAME\.gimp-2.8\scripts
; 
;  Windows XP
;  C:\Program Files\GIMP 2\share\gimp\2.0\scripts
;  or
;  C:\Documents and Settings\yourname\.gimp-2.8\scripts   
; 
;  Linux
;  /home/yourname/.gimp-2.8/scripts  
; 
;  Linux system-wide
;  /usr/share/gimp/2.0/scripts
;