how get centroid contour distance at certain degrees?

Question

Robin 2014-3-26

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/123142-how-get-centroid-contour-distance-at-certain-degrees

回答： Image Analyst 2014-3-26

I have an image and I already get the boundary and the weighted centroid of region of interest. I want to get the coordinate point of boundary at certain degrees. It starts from coordinate point at 0 degree from centroid point(blue colour in image)a,d its counterclockwise. Can anyone help me about this? Thx for the help

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Image Analyst 2014-3-26

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/123142-how-get-centroid-contour-distance-at-certain-degrees#answer_130583

Calculate the angle of every point using atan2d() then use both returned values from min() to find which one is closest to the angle you're looking for. Let me know if you can't figure it out from those instructions. It's like 2 lines if you vectorize it.