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Diffstat (limited to 'doc/filters.texi')
-rw-r--r-- | doc/filters.texi | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 14a6750..99f07a6 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -8259,13 +8259,17 @@ The filter accepts the following options: @table @option @item sigma -Set sigma, standard deviation of Gaussian blur. Default is @code{0.5}. +Set horizontal sigma, standard deviation of Gaussian blur. Default is @code{0.5}. @item steps Set number of steps for Gaussian approximation. Defauls is @code{1}. @item planes Set which planes to filter. By default all planes are filtered. + +@item sigmaV +Set vertical sigma, if negative it will be same as @code{sigma}. +Default is @code{-1}. @end table @section geq |