shconv [ options ]  SH_in response SH_out
  • SH_in: the input spherical harmonics coefficients image.
  • response: the convolution kernel (response function)
  • SH_out: the output spherical harmonics coefficients image.


perform a spherical convolution


  • -mask image only perform computation within the specified binary brain mask image.

Stride options

  • -stride spec specify the strides of the output data in memory, as a comma-separated list. The actual strides produced will depend on whether the output image format can support it.

Standard options

  • -info display information messages.
  • -quiet do not display information messages or progress status.
  • -debug display debugging messages.
  • -force force overwrite of output files. Caution: Using the same file as input and output might cause unexpected behaviour.
  • -nthreads number use this number of threads in multi-threaded applications (set to 0 to disable multi-threading)
  • -failonwarn terminate program if a warning is produced
  • -help display this information page and exit.
  • -version display version information and exit.

Author: David Raffelt (

Copyright: Copyright (c) 2008-2016 the MRtrix3 contributors

This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at

MRtrix is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

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