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KennethReynolds1988
Participant
May 9, 2011
Question

Webcam Brightness as control cs3 asap :)

  • May 9, 2011
  • 1 reply
  • 450 views

Hey Im looking to make the brightness of footage being captured by a webcam as a trigger to start or stop an event or animation. basically when the brightness being captured by the webcam goes below a certain level a layer will be effected and when the brightness goes back above this level it will revert back to its original state..

Any ideas ??

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1 reply

Lee_Burrows
Lee_Burrows
Participating Frequently
May 10, 2011

hi

you could follow these steps to get the brightness of the webcam:

1. reduce video instance width and height to 1px.

2. create a BitmapData object of same size (1px by 1px).

3. use (eg) myBitmapData.draw(myVideo); to copy video to bitmapdata.

4. reset video width and height back to original size.

5. get pixel from bitmapData object (eg) var myPixel:uint = myBitmapData.getPixel32(0,0);

now you have the average colour (and hence also brightness) of the video in myPixel and you can start/stop your animation based on this value

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