7.1.118. 3dOverlapΒΆ

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Usage: 3dOverlap [options] dset1 dset2 ... Output = count of number of voxels that are nonzero in ALL

of the input dataset sub-bricks

The result is simply a number printed to stdout. (If a single brick was input, this is just the count of the number of nonzero voxels in that brick.) Options:

-save ppp = Save the count of overlaps at each voxel into a
dataset with prefix ‘ppp’ (properly thresholded, this could be used as a mask dataset).
Example:
3dOverlap -save abcnum a+orig b+orig c+orig 3dmaskave -mask ‘abcnum+orig<3..3>’ a+orig

++ Compile date = Dec 16 2015

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