Creating binary 3D mask from MR volume
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Hello All,
I am trying to create a 3D binary mask for MR head volume. The image has 0 intensity for background and the tissue inside the image has integers. Morphological operations provide me very noisy output.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/287572/image.png)
This is after bwconncomp, thresholding and imerode options.
Are there better ways to get volumetric masks?
8 个评论
Image Analyst
2020-4-27
I don't think the noise on the mask is the issue. Why did your classification routine quit classifying stuff below that line other than the blue stuff? For some reason, you have a mask that just quits below that line, and that has nothing to do with little noisy blips on it.
回答(2 个)
Mrutyunjaya Hiremath
2020-4-27
Hello banikr,
I think this is what you want ... if I am not wrong.
load mri;
% load mriVolume; %3D MRI data with data variable name 'mriVolume'
mriVolume = D;
% Assuming background pixels are 0
bwMask = false(size(mriVolume));
pixIndex = find(mriVolume > 0);
bwMask(pixIndex) = 1;
3 个评论
Mrutyunjaya Hiremath
2020-4-27
@ banikr,
ok got it, if MRI data is possible to share, please share. love to work on it.
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