Resizing x and y values of a DICOM/3D logical matrix, slice-by-slice, using for-loop.

Hello, I am a new Matlab user. I would like your help with a for-loop code please.

I'll be using a software which will forward a DICOM file to Matlab, and convert the image into a logical matrix. For example 1536x1536x90, but the x,y,z values will vary depending on the input DICOM file.

I would like to adjust the images to 512x512 for every 90 slices.

Here's what I'm picturing:

For slices thru s = 1 to s = #slices in a dicom file 
     specify the x and y dimensions of the slice s
     set the x and y dimensions of s to 512*512
     repeat until s reaches #slices in the dicom file 
End

Right now I have:

for s = 1:size(img,3) 
    xy = img(:,:,s)
    use imresize on xy?
end

And I don't know where I'm going with this. Being a newbie I don't think I fully understand how to deal with various types of matrices, so any help is appreciated.

Thanks in advance!

Answer 1

[Walter Roberson]

out = imresize(img, [512, 512]);

It happens that imresize() handles the case of multiple planes, without needing a loop.