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R component pixel extraction

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