anyone can help me to open this file . sin

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mohd akmal masud
mohd akmal masud on 17 Dec 2024 at 8:05
Commented: mohd akmal masud on 18 Dec 2024 at 0:01
Dear everyone, anyone can help me to open the sin file as attached data.
  3 Comments
mohd akmal masud
mohd akmal masud on 17 Dec 2024 at 12:13
Edited: mohd akmal masud on 17 Dec 2024 at 12:14
@Mike Croucher, Do you have download it? It form GATE simulation
Cris LaPierre
Cris LaPierre on 17 Dec 2024 at 14:38
@mohd akmal masud we need to know the format used to create the file in order to read it in correctly.
The Interfile format is especially suited for acquisition protocol using a multiple headed rotating gamma camera. The total description of the Interfilev3.3 format can be found on the Interfile website: http://www.medphys.ucl.ac.uk/interfile/index.htm.
Two files are created when using the Interfile/Projection output: your_file.hdr and your_file.sin. The header file contains all information about the acquisition while the your_file.sin file contains the binary information.
The page lists the following details as well
  • Image Type: 16-bit Unsigned
  • Width & Height & Number of Images can be read into the .hdr files if unknown.
  • Tick the case: Little Endian byte Order

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Answers (1)

Cris LaPierre
Cris LaPierre on 17 Dec 2024 at 15:23
Edited: Cris LaPierre on 17 Dec 2024 at 15:33
This code will reproduce the results obtained in imageJ using the settings provided in the GATE documentation with one change - your .hdr file indicates the number format is double, not uint16.
numI = 240;
% Define the filename
filename = 'jaz_100M_60proj.sin';
% Open the file for reading
fileID = fopen(filename, 'r');
% Read the data as 16-bit unsigned integers
data = fread(fileID, [128*128,inf], 'double', 'ieee-le');
% Close the file
fclose(fileID);
% reshape the data
proj = reshape(data,128,128,240);
proj = permute(proj,[2 1 3])
% display one image
imshow(proj(:,:,1), []);
Just a comment that I have no idea what the data should look like. This should serve as a starting point nonetheless.
  2 Comments
Cris LaPierre
Cris LaPierre on 17 Dec 2024 at 15:41
Here's what the data looks like in the Volume Viewer app.
mohd akmal masud
mohd akmal masud on 18 Dec 2024 at 0:01
Dear @Cris LaPierre, This is what I want. Thank you very much. May God always bless you

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