How to use the edge function to extract a curve from the photo, and then draw this curve on the coordinate system, and finally smooth the curve.

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Wesley
Wesley 2020-11-18
评论： Wesley 2020-11-19
How to use the edge function to extract a curve from the photo, and then draw this curve on the coordinate system, and finally smooth the curve.I am very grateful to everyone for helping me solve this problem.
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KALYAN ACHARJYA
KALYAN ACHARJYA 2020-11-18
编辑：KALYAN ACHARJYA 2020-11-18
data=imbinarize(imread('image.jpeg'));
result=edge(data);
figure,imshow(result);
[r,c]=find(result==1);
figure,plot(c,r,'.');
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Wesley
Wesley 2020-11-19
I found the source of the problem. The reason is that the MATLAB software draws the line with the point in the upper left corner as the origin, so we see the image in the opposite direction to the original image.

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