Nearest Neighbour Orientation Distribution

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george korris 2022 年 2 月 23 日

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https://jp.mathworks.com/matlabcentral/answers/1656470-nearest-neighbour-orientation-distribution

コメント済み: Image Analyst 2022 年 4 月 3 日

Hello, I want to find the distribution of the orientation of the undirected line connecting the typical point with its nearest neighbour. I have found something similar in R: https://rdrr.io/spatstat.core/man/orient.html and I am wondering how this could be done in Matlab. I have the pattern as an image, and I can extract the points and find their nearest neighbours using knnsearch .

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KSSV 2022 年 2 月 23 日

REad about knnsearch. Get the nearest points and do what you want.

Image Analyst 2022 年 4 月 3 日

You forgot to attach the image. When you have an image, each pixel has 8 neighbors, so what do you consider as the "undirected line connecting the typical point with its nearest neighbour"??? There are 8 nearest neighbors, or at least 4. You imply there is only one.

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