How to create a mask

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divya r
divya r 2014-5-6
回答： Image Analyst 2014-5-7
Hi
I am trying to create a mask for an image which has multiple circles in it. I have tried using filledCircle function. But it only adds the circle to the figure, and does not change the image itself.
I there any other way I can create the masks given the centers and the radii of the circles?

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Image Analyst
Image Analyst 2014-5-7
You can use the FAQ - it creates a circle that can be used as a mask. http://matlab.wikia.com/wiki/FAQ#How_do_I_create_a_circle.3F
Also, see my attached demos.

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