How to make a round bounday on the object

Hi,

Using the example i have successfully drawn the outline on the object.

But it is showing glitches of up and downs on the surface.

I want to get rid of it and make a circular outline around my object.

Cany anyone pls help me in doing it.

Thanks

[Matt J]

What determines the radius and center of the circle?

[Ghulam]

Thanks Matt J

There is no exact thing which determines the radius of this circle.

Answer 1

[darova]

• Use edge to detect edge
• Use find to get coordinates (rows and columns of edge)
• Calculate some center (approximately)
• 
• Use cart2pol to calculate angle of each pixel
• sort pixels by angle
• Calculate new edge with smooth

Or another way:

• Use edge to detect edge
• imdilate object
• Try bwmorph(I,'thin',inf) tu return to original image