Detecting pixel changes like Magnum script?

im trying make script detect changes in pixels.i have image sequences has been animated on 4s . frames identical 4 separate frames , changes. detect change automatically . sort of "magnum - edit detector" high sensitivity cause every change should registered new frame.

it text plugin... everytime there new "frame" should put new number.

 

cant find in scripting language on how done.

 

from jesper

i dont think scripts can access image pixels.

a work around, 1 used magnum, add temp color control (or slider if 1 component needed) sampleimage expression , set/harvest values 1 one.

if need spot changes pixel accuracy, wrong direction imo.

but detect whether @ least 1 change occured, whatever position in image, whatever "intensity" of change, might ok.

 

(one advice, sorry if obvious, given frame better put loops inside expresion rather set/read in loop).

 

xavier.

More discussions in After Effects Scripting

adobe