Table of Contents  ▸  List of Commands  ▸  Filtering  ▸  boxfilter

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boxfilter

Built-in command

Arguments:

• size[%]>=0,_order,_boundary_conditions,_nb_iter>=0    or
• axes,size[%]>=0,_order,_boundary_conditions,_nb_iter>=0

Description:

Blur selected images by a box filter of specified size (fast recursive implementation).

order can be { 0:Smooth | 1:1st-derivative | 2:2nd-derivative }.
boundary_conditions can be { 0:Dirichlet | 1:Neumann | 2:Periodic | 3:Mirror }.
When specified, argument axes is a sequence of { x | y | z | c }.
Specifying one axis multiple times apply also the blur multiple times.

Default values:

order=0, boundary_conditions=1 and nb_iter=1.

Examples of use:

• Example #1

• Example #2

G'MIC is an open-source software distributed under the CeCILL free software licenses (LGPL-like and/or
GPL-compatible). Copyrights (C) Since July 2008, David Tschumperlé - GREYC UMR CNRS 6072, Image Team.