How to find the best circular fit for an irregular shape and define an average radious for it. The Goal is to define a fix distance from the weighed center and extract the ave

9 次查看（过去 30 天）
Ali Hariri
Ali Hariri 2022-1-14
编辑： Matt J 2022-2-14
How to find the best circular fit for an irregular shape and define an average radious for it. The Goal is to define a fix distance on the radious e.g. (0.5 R) from the weighed center and extract the ave od data from those pixels.

请先登录，再回答此问题。

回答（2 个）

Abhiroop Rastogi
Abhiroop Rastogi 2022-2-14
Hi Ali Hariri,
For fitting a best circular fit for the data you have you choose from the resources given
1: A suite for minimal bounding objects
2: Circle Fit
3: Fit circles to data points in irregular images
The first two give you a fit if you have the data in coordinates form and the third one utilizes the image data itself.
Matt J
Matt J 2022-2-14
编辑：Matt J 2022-2-14
You can use circularFit(), available at
https://www.mathworks.com/matlabcentral/fileexchange/87584-object-oriented-tools-for-fitting-conics-and-quadrics
Or, you can use regionprops,
reg=regionprops(BW,'WeightedCentroid','PixelList');
averageRadius=mean(vecnorm( reg.WeightedCentroid-reg.PixelList ,2,2));

类别

在 Help Center 和 File Exchange 中查找有关 Interpolation 的更多信息

标签

产品


版本

R2019b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by