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R component pixel extraction

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Chandra Shekhar
Chandra Shekhar on 27 Sep 2012
i have equation R(x,y)=sqrt(x^2 + y^2) i need to compute this equation. x and y are individual pixels from color R. please help me any one ..thank you.


Ryan on 27 Sep 2012
What exactly are you trying to do? Are you trying to draw a circle? Are you trying to perform a process on an image? On two vectors? Are you trying to extract that "red" channel from an image?
Image Analyst
Image Analyst on 27 Sep 2012
Beats me. Definitely needs clarification. If they're trying to do something with circles, perhaps the Circle FAQ will help.

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