>Hi, > >I am brand new to GIMP and am trying to statistically match 2 picture >sets on brightness, contrast, and luminosity for a psychology research >study. I've done a ton of online searching and figured out how to find >values for brightness and contrast. Using the histogram, I used the >mean of the "Value" channel to determine each picture's brightness, >and the standard deviation of the "RGB" channel to identify contrast. > >However, I am at a standstill for extracting values for each image's >luminosity. Please let me know if you're aware of how I may go about >this. I know spatial frequency can be used, but am unable to locate >the value for each image in GIMP. > >Thanks! >Will
You might get an answer here, or you might not. My advice, ask the same question on https://discuss.pixls.us/ lots of clever people there. -- rich404 (via www.gimpusers.com/forums) _______________________________________________ gimp-user-list mailing list List address: gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
