Change saturation with tweening

[maguskrool]

(AS3)


Hi everyone.

I have a gallery filled with photos. The photos are loaded into Sprites and I need to desaturate them. When a Sprite is clicked, its image should return to its original saturation value in a tweened effect. I managed to achieve a desaturated effect using the ColorMatrixFilter, but mostly through experimenting with different values, not the most scientific approach. So:

1 - Is there a better way to change an image's saturation? Or can anyone explain me how to change the ColorMatrixFilter's values to get a certain amount of saturation?

2 - How can I switch between the saturated/desaturated values with a tween-like effect?

Thanks in advance!

http://www.vivoeusebio.com

 

[kennethkawamoto]

You can write your own class but here's one done by Jens Krause:
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http://www.websector.de/blog/2007/0...rties-_brightness-_contrast-and-_saturation/>

Kenneth Kawamoto

http://www.materiaprima.co.uk