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 2013-10-4

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https://ww2.mathworks.cn/matlabcentral/answers/89202-hi-i-have-a-binary-image-i-want-to-choose-3-points-on-it-use-interpolation-and-make-a-curve-fi

评论： Alex Taylor 2013-10-7

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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Image Analyst 2013-10-4

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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?

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?