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Good Chroma Key?

Enthusiast ,
Jul 16, 2017 Jul 16, 2017

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After doing some Googling it seems there's not a very good chroma key solution for AS3. I found on Quasimondo a pretty nice one, but it's old and AS2 only and the video sample was only 320x240. I need a good clean key from a minimum of 960x540 (1280x720 ideally) webcam, and I'd really like it to run 24fps or so. Thought there might be an ANE for it, but I've found mostly poor examples using threshold and such. I think part of the problem is there's no other native color spaces in AS3 - if there were HLS or LAB space doing keying would be a lot less processor intensive - converting rgb to hls one pixel at a time is expensive.

Anyway thanks for any info.

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Enthusiast ,
Jul 17, 2017 Jul 17, 2017

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Not much traffic on this. I have started writing my own as I just can't find anything decent for AS3. Will post results if anyone is interested.

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Enthusiast ,
Jul 21, 2017 Jul 21, 2017

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So after a few days on this I've managed a pretty good key. Running 960x540 camera resolution at a solid 22fps

Here's a capture - using a blue sleeping bag behind me.
key.jpg

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Community Beginner ,
Jul 17, 2018 Jul 17, 2018

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hello,

i wrote you a pn. this is critically important for me after adobe dismissing flv export in media encoder (the only container format with alpha channel supported by adobe air)...

looking forward to your answer,

best regards,

kai

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