Chroma key effect in as3.0

[kiran1989]

Hi ,

How to make chroma key effect in as3.0. I am building an application in that while recording a video user can remove the solid background and inserts some other image it is done by chroma keying..

Any ideas please

Thanks

[kglad]

do you want to save the video with the user's background or just display it while the video is playing in flash?

are you building an air for desktop app?

[kiran1989]

I want both i need to dispplay in playing video and have to save it. yes I was building an air for desktop app

[kglad]

if there's no sound you can use the flvrecorder: https://code.google.com/p/flvrecorder/

otherwise, you'll need to extend that class yourself.

[kiran1989]

Not exactly it is simply recording the video I can make that, The main target is to remove the solid color background from video

[kglad]

your video should start with no background.  otherwise, flash will have a lot of work to do removing it during run-time.  that's inefficient.

[kiran1989]

what i mean exactly is user starts recording  the video in solid background environment so he can eliminate the background with chroma key and replaces with some image. The chrom key will hide the background show the user and in background he can place some image

this is chroma key effect

http://en.wikipedia.org/wiki/Chroma_key

[kglad]

if you want to dynamically remove the background, use the bitmapdata class but that's going to be problematic because of the computational power required.

[kiran1989]

Yes, I know . I was searching in google but I didn't good solution for that. I came to know that we can do that using pixel binder shader.. But I don't how to use pixel binder and it is based on some algorithms

[moccamaximum]

Here is a as2-Version of what you are searching for. If you are having difficulties to convert it to as3 report back.