Border is drawn around the ellipse, how to fill now?

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med-sweng
med-sweng 2014-10-6
回答： Chad Greene 2014-10-7
In this tutorial, an ellipse will be outlined. As you can see, a red border will be drawn around. Form such result, how can we fill such surrounded border with white, and the rest of the image as black?
Thanks.

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Chad Greene
Chad Greene 2014-10-7
You could fill the ellipse with a patch or you could use inpolygon to set all pixels inside the polygon to one color, and set all other pixels another color.

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