voldiff
compare classified volumes and produce a difference volume
voldiff <input1.mnc> <input2.mnc> <output.mnc>
DESCRIPTION
voldiff computes the voxel-by-voxel difference between two MINC volumes. For each voxel, the value in the second volume is subtracted from the value in the first volume, and the result is stored in the output volume.
This tool is useful for comparing classification results, detecting changes between time points, evaluating registration accuracy, or computing difference maps for statistical analysis. The two input volumes must have compatible dimensions and sampling.
OPTIONS
voldiff does not accept option flags. All arguments are positional.
<input1.mnc>- First input MINC volume.
<input2.mnc>- Second input MINC volume to subtract from the first.
<output.mnc>- Output MINC volume containing the voxel-wise difference (input1 - input2).
EXAMPLES
Compute the difference between two volumes:
voldiff pre_treatment.mnc post_treatment.mnc difference.mnc
Compare two classification results:
voldiff classify_method1.mnc classify_method2.mnc class_diff.mnc
AUTHOR
Jason Lerch - McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University.
COPYRIGHTS
Copyright © 2003 by Jason Lerch