how to view image from MAT file
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Ashbub
el 22 de En. de 2017
Comentada: blues
el 25 de Oct. de 2018
Hi, I am new in Matlab. I have saved a 3D CT image data in MAT format and loaded it on Matlab. It shows [1x61x54 uint16] and 'struct' as data type. I need to do segmentation on the image. How can I view the image so that I can work on it? I don't have much idea about data structure. I badly need the solution. Thankyou.
2 comentarios
Walter Roberson
el 22 de En. de 2017
That size could be one single plane of an image but it cannot be an entire 3d image.
Can you attach the mat file?
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Image Analyst
el 22 de En. de 2017
Try this:
filename = 'trial.mat';
s = load(filename)
% Extract array from structure.
m = s.Avizo_trial_mat;
% Get rid of 1 dimension.
m = squeeze(m);
whos m
% Display the slice:
imshow(m, [], 'InitialMagnification', 500);
axis on;
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/176790/image.png)
12 comentarios
Walter Roberson
el 23 de Oct. de 2018
So you would combine them as if they were rgb?
Note that 256 is a power of 2 and is not divisible by 3.
blues
el 25 de Oct. de 2018
Not sure! I want to combine each three slices (say) to make a single slice of thickness 3 mm, so that I can print it.
The matrix I have is 256x256x256 (voxel size 1mm^3) array and would like to transform original matrix into 256x256x84 ( 256/3 approx. 84). The new matrix will have same dimension in x and y but slice thickness will be 3mm.
Based of the code posted above, I can easily see image slices. But I am thinking about to print the image slice with white matter (say, high intensity: 1.0) as 2 mm, gray matter (medium intensity: 0.5) as 1 mm, and background (low intensity part = 0) as 3 mm in a single slice. What is the way to do this? Plan is to make a meaningful stack of image slices to that I could 3d print them.
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