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How to find pixels number of a 3D dataset

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Silvia Caruso
Silvia Caruso 2015-6-3
回答： Image Analyst 2015-6-3
I have a 3D dataset D=260*320*100 of 100 slice. After segmentation I need to Know the total volume (found as total number of pixel) of the 3D dataset. I tried with this code, but I'm not able to find the total volume:
CCvol = bwconncomp(D(:,:,:), 8);
STATS = regionprops(CCvol, 'Area');
Volume=sum(STATS.Area)

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Image Analyst
Image Analyst 2015-6-3
Assuming D is your binary image, and you want the volume of the true/white/1 voxels, you'd simply do this:
Volume = sum(D(:)); % Compute sum of all "true" voxels.

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