Dear Saad and tractography experts,
I recently compared two different methods to count the number of streamlines on a fdt_paths image applying a target mask, which showed different results.
Firstly, I used [fslstats fdt_paths -M $mask] to get "mean of the values' and [fslstats fdt_paths -V $mask] to get the 'number of non-zero voxels". I then multiply them.
Secondly, I load the fdt_path into matlab and just sum up all the values within the same mask.
These two measures, however, are not same. The first method show a 13% increase than the second summation on matlab.
Have you experienced a similar issue before? What method would you recommend?
Thanks for your help in advance.
Best,
Jiook
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