How to calculate the pixel value segmentation

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Dear all,
I have code below. How to calculate the total counts in every volume segmentation P
All the image attached.
% For binary images (png format, each pixel just have value 1 and 0.)
clc
clear all
close all
dataSetDir = fullfile('C:\Users\Akmal\Downloads\1.2.840.113619.2.280.2.1.6032022125618360.139679786-20220425T063142Z-001\1.2.840.113619.2.280.2.1.6032022125618360.139679786');
imageDir = fullfile(dataSetDir,'gradieweigbwaftersegmentationpngTCEswari');
imds = imageDatastore(imageDir);
for i = 1:45
subplot(13,11,i)
I = readimage(imds,i);
% binary
Is{i} = logical(I);
imshow3D(I)
end
% For 3D images spect
myFolder = ('C:\Users\Akmal\Downloads\1.2.840.113619.2.280.2.1.6032022125618360.139679786-20220425T063142Z-001\1.2.840.113619.2.280.2.1.6032022125618360.139679786\dcmeswariint16128x128');
filePattern = fullfile(myFolder, '*.dcm'); % Change to whatever pattern you need.
theFiles = dir(filePattern);
for K = 1 : length(theFiles)
baseFileName = theFiles(K).name;
fullFileName = fullfile(theFiles(K).folder, baseFileName);
fprintf(1, 'Now reading %s\n', fullFileName);
% Now do whatever you want with this file name,
% such as reading it in as an image array with imread()
P(:,:,K) = dicomread(fullFileName);
P(:,:,K) = (P(:,:,K)) .* int16( Is{K} );
% P(:,:,K) = double(uint8(K).*uint8(Is{K}));
end

Answers (1)

Image Analyst
Image Analyst on 7 Sep 2023
I believe the total pixel count would be numel(P~=0).

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R2021b

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