Create multiple structure properties from a stack of 3D images

Hello,

I have a stack of binary images(16 to be exact) in a 3D matrix that I named M2 and I wanted to extract centroids from each of those images inside that 3D matrix using regionprops using for loop, but without any success.

I labeled each of those images and stored them in a new 3D matrix called bw. I want to extract centroids of many labels contained by each image of that 3D matrix and store them in maybe separate structures. But I am not sure how to do that and use them later in my code. I want to be able to get perhaps separate sub-structures containing centroids of each labeled image so that I can access those centroids later on in my code.

I have done this so far:

numImages - is a number of images inside my 3D matrix

bw - is a 3D matrix of my labeled images

M2 - is a 3D matrix of my binary images

 for i=1:numImages
 s = regionprops(logical(bw(:,:,i)), M2(:,:,i), 'Centroid');
 end

Here I am not sure how to get centroids stored in separate structures for each image of my 3D matrix. Any help would be much appreciated.

Thanks in advance!

Answer 1

[Image Analyst]

In the loop, put this

strCentroids(i).Centroids = [s.Centroid];

[Mario]

Thanks, that is working!

Now I have a 1x16 structure s containing all 16 labeled images with each of them having their regions centroids.