Getting pixel averages of a vector sitting atop a bitmap...

Posted by user346511 on Stack Overflow See other posts from Stack Overflow or by user346511
Published on 2010-05-21T00:57:43Z Indexed on 2010/05/21 1:10 UTC
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image-manipulation

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python

I'm currently involved in a hardware project where I am mapping triangular shaped LED to traditional bitmap images. I'd like to overlay a triangle vector onto an image and get the average pixel data within the bounds of that vector. However, I'm unfamiliar with the math needed to calculate this. Does anyone have an algorithm or a link that could send me in the right direction? (I tagged this as Python, which is preferred, but I'd be happy with the general algorithm!)

I've created a basic image of what I'm trying to capture here: http://imgur.com/Isjip.gif

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