Detect average pixel brightness of an image / pixmap?

BlitzMax Forums/BlitzMax Programming/Detect average pixel brightness of an image / pixmap?

Grisu(Posted April) [#1]
Hi everyone,

I need to detect the average brightness of images such as these:

Light


Dark


Is there a fast / non-realtime method to do so?

Grisu

P.S. There used to be a function for this on the forums / archives, but I can't find it. :/


degac(Posted April) [#2]
https://www.blitzbasic.com/Community/posts.php?topic=87307

in this link (not tested the source code) they speak of darkness/brightness

edit: sure they are not in real-time

edit2: or maybe try FreeImage modules from Brucey... it should have some method inside