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Hi , I have a binary image , i want to choose 3 points on it,use interpolation , and make a curve fitting on it? what is code matlab for doing this??

Asked by Zohreh Tavakkoli on 4 Oct 2013
Latest activity Commented on by Alex Taylor
on 7 Oct 2013

Hi , I have a binary image , i want to choose 3 points on it and make a curve fitting on it? what is code matlab for doing this??

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1 Answer

Answer by Image Analyst
on 4 Oct 2013

What kind of curve? With 3 points, you can do a second order curve or first order line. Do you want a parabola, a circle, or a line? Did you try passing the points into polyfit(), or see the FAQ?

  3 Comments

I have a binary image , I want to fit a half circle on 3 points on it, what is codes?

It's in the FAQ. Did you click on the link I gave you? The code is right there to fit a circle. After that you can decide where to split the circle into halves. Where to you think you want to do that?

What kind of interpolation are you going to use? Is your output image also going to be logical? If so, I assume you are using Nearest Neighbor?


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