Detect a half complete ellipse in opencv

I am trying to measure the min and max radius of an ellipse using opencv. But this ellipse is not fully complete as shown in the image

image description I have tried hough circles method. But it doesn't give me the output which I need.

This is the output I expect to get. image description

Comments

we probably cannot help with c#/emgu, but have a look at fitEllipse()

berak ( 2020-03-03 12:43:32 -0600 )edit

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the actual output is like below. try to modify the code.

image description

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Asked: 2020-03-03 10:39:39 -0600

Seen: 1,549 times

Last updated: Mar 03 '20