Help converting 1 Byte integer data to Short

Hi all,

I am trying to create a binary file of a 3D medical imaging CT scan with data stored as shorts. Currently I have an array of size A defined as 380x992x208 uint8 that is storing all of the data. I used:

    fid = fopen('../atlas.bin', 'w');
    fwrite(fid,A);
    fclose(fid);

To write this data to a binary file. However after creating this file I noticed that based on the array size there should be 380 x 992 x 208 = 78,407,680 total voxels.

I need each voxel to be a Short, that's 2 bytes per voxel, so size should be 156,815,360 but the file is 78.4 MB. So it looks like the file is made of 1 Byte integers rather than Shorts. If anyone has any advice on how to properly export or change my array, A, so that I can store the data in my binary fike as shorts that would be much appreciated.

-Thanks

Answer 1

[Walter Roberson]

fwrite(fid, A, 'uint16')

That would write each byte of your uint8 and would also write a byte of zeros.

You might need

fwrite(fid, A, 'uint16', 'ieee-be')

[Zachary Kober]

Thanks for the help!