finding number of centroids of a binary image

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Itamar Malageac
Itamar Malageac on 25 Nov 2021
Answered: Image Analyst on 25 Nov 2021
Hello,
I have an image of separated shapes and Im trying to get thier centroids.
The image is binary-like image means it fills with zeros and any shape is fills with numbers.
Say there are 10 shapes in the image, every shape has its number from 1 to 10 and that is the value in the image.. i would like to get 10 centroids of the shapes.

Answers (2)

KSSV
KSSV on 25 Nov 2021
REad about regionprops. You can also try kmeans. Read about it.

Image Analyst
Image Analyst on 25 Nov 2021
Try my Image Segmentation Tutorial. It gives a well commented demo to find the centroids and other things.
In short,
binaryImage = grayImage > 0;
props = regionprops(binaryImage, 'Centroid')
centroidsxy = vertcat(props.Centroid)

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