# Pixelanalyser
**URL:** https://forum.highend3d.com/t/pixelanalyser/9787
**Category:** Compositing
**Tags:** shake
**Created:** [March 17, 2006, 3:46pm UTC](https://forum.highend3d.com/t/pixelanalyser/9787 "2006-03-17T15:46:55Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@user\_deleted](https://forum.highend3d.com/u/user_deleted)
#### Post date: [March 17, 2006, 3:46pm UTC](https://forum.highend3d.com/t/pixelanalyser/9787/1 "2006-03-17T15:46:55Z")
Hi Folks,
Hope you can help out this Shake newbie...I'm probably asking something that's
either obvious or impossible...
I've used a PixelAnalyser node on a clip that has changes in
luminance level over five hundred frames and have saved the result of the analysis.
How do I then apply this analysis to control another node, say ContrastLum for example?
Thanks in advance for any suggestions.
Halfmedley
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### Author:  [@user\_deleted](https://forum.highend3d.com/u/user_deleted)
#### Post date: [March 18, 2006, 6:42pm UTC](https://forum.highend3d.com/t/pixelanalyser/9787/2 "2006-03-18T18:42:36Z")
you should look up "Linking Parameters" in the manual.
To get you started, here is script that uses PixelAnalyzer to form a rudimentary flicker fixer:
Color1 = Color(720, 486, 4, .8-(sin(time)/5), .8-(sin(time)/5),
.8-(sin(time)/5), 1, 0);
Mult1 = Mult(Color1, (1/pa1.area1AverageRed), (1/pa1.area1AverageGreen),
(1/pa1.area1AverageBlue), 1, 1);
pa1 = PixelAnalyzer(Color1, "1", 1, "area1", 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, width/2, height/2, 30, 30, 1);
Exposure\_comp = Mult(Mult1, 1, 1, 1, 1, 1);
Replace Color1 with your image. Mult1 mulitplies the image with the inverse of the PixelAnalyzer (pa1)
Set Exposure\_comp to the color you want the area you are analyzing to be stabilized to.