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How to measure curvature of an object in image?

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sana3 sal
sana3 sal 2018-6-17
评论： KSSV 2018-6-19
Hello, I have the following image, how i can measure the curvature of the object?
(curve marked with blue line)

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回答（1 个）

KSSV
KSSV 2018-6-18
As you have coordinates/ positions of blue lines..you may consider referring this: https://in.mathworks.com/matlabcentral/fileexchange/32696-2d-line-curvature-and-normals
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sana3 sal
sana3 sal 2018-6-18
编辑：sana3 sal 2018-6-18
I have draw the line manually just to make the idea clear, suppose that it does not exists. And i tried the solution here : solution , I had the following results. cam you help me analyzing the curvature plot?
KSSV
KSSV 2018-6-19
Outlines from bwboundaries shall give you coordinates eh.

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