HOW TO OPEN IMAGE VOXEL MAN AS ATTACHED

HELLO DEAR,

Anyone can help me open my image voxel man as link attached.

[Image Analyst]

Do you have any idea of the format of the .dat file? Like how many rows, columns, or slices?

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[mohd akmal masud]

There is 128x128x243 integer, 8 bit

Answer 1

[Udit06]

Hi @mohd akmal masud,

I understand that you want to open the image stored in the "vox_man.dat" file which is of the size 128*128*243. You can use MATLAB's "fopen", "fread" and "fclose" functions to read image data stored in .dat file as shown below.

% Open the file for reading
fileID = fopen('vox_man.dat', 'r');

% Specify the image dimensions and data type
imageWidth = 128;       
imageHeight = 128;      
numChannels = 243;      
dataType = 'uint8';     

% Read the file contents into a vector
imageVector = fread(fileID, imageWidth * imageHeight * numChannels, dataType);

% Close the file
fclose(fileID);

%imageVector now contains the data stored in vox_man.dat file in a vector
%format, you can now reshape your data as per your requirement for further
%analysis.

For visualizing the image you may have to perform some statistical operations on your image data to reduce the number of channels to form an RGB or a grayscale image.

You can refer to the following MathWorks documentation to understand more about "fopen", "fread" and "fclose" functions respectively.

• https://www.mathworks.com/help/matlab/ref/fopen.html
• https://www.mathworks.com/help/matlab/ref/fread.html
• https://www.mathworks.com/help/matlab/ref/fclose.html

I hope this helps.

[Image Analyst]

Here are the missing lines they forgot to add to the end of their script:

%imageVector now contains the data stored in vox_man.dat file in a vector
%format, you can now reshape your data as per your requirement for further analysis.
image3D = reshape(imageVector, [imageHeight, imageWidth, numChannels ]);

% Display options:
% Display the 3-D volumetric image slice by slice.
for k = 1 : numChannels
    imshow(image3D(:, :, k), []); % Show slice k.
    caption = sprintf('Displaying slice %d', k);
    title(caption);
    drawnow;
end

% Bring up in 3-D volume viewer.
volumeViewer(image3D)