180 Projection of an Image

Hello I am totally new to MATLAB and our professor is asking for a 180 projection of a DICOM image. and I have no clue how to do this

Answer 1

[Satwik]

A 180-degree horizontal projection can be created by summing up the image along the rows. Here is an example code of how this can be done:

% Load the DICOM image
filename = 'your_dicom_file.dcm'; % Replace with your DICOM file name
dicomImage = dicomread(filename);

% Display the original DICOM image
imshow(dicomImage, []);
title('Original DICOM Image');

% Create a 180-degree horizontal projection by summing along rows
projection = sum(dicomImage, 2);

% Plot the projection
figure;
plot(projection);
title('180-Degree Projection');
xlabel('Pixel Index');
ylabel('Summed Intensity');

For more information on the functions used, kindly refer to the following documentation links:

• https://www.mathworks.com/help/images/ref/dicomread.html
• https://www.mathworks.com/help/matlab/ref/plot.html

I hope this helps!