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??

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Zohreh Tavakkoli
Zohreh Tavakkoli on 4 Oct 2013
Commented: 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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Answers (1)

Image Analyst
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?
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Image Analyst
Image Analyst on 4 Oct 2013
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?
Alex Taylor
Alex Taylor on 7 Oct 2013
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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