How to find the minimum distance from one point to other point ?

Question

Surendra Ratnu 2023-6-5

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https://ww2.mathworks.cn/matlabcentral/answers/1978534-how-to-find-the-minimum-distance-from-one-point-to-other-point

回答： Star Strider 2023-6-5

In image, we have two boundaries (M- inner boundary and N-outer boundary). Suppose M boundary has 1000 points and N has 1500 points. I want to calculate the distance and angle from point V(fixed point) to boundary M. How will i calculate the minimum diatance from point M on the boundary m to boundary N (for every point on the boundary m) ??

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Answer 1

KALYAN ACHARJYA 2023-6-5

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https://ww2.mathworks.cn/matlabcentral/answers/1978534-how-to-find-the-minimum-distance-from-one-point-to-other-point#answer_1250704

You can do that in multiple ways, one way

Segment both boundaries into two separate images.
Store the pixel indices in a cell array (two cell array)
Calculate the Euclidean distance between each pair of indices (all possible combinations).
Find the minimum distance value.

I hope this helps!