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Diffstat (limited to 'doc/filters.texi')
| -rw-r--r-- | doc/filters.texi | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 301887d..2475e00 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -4003,27 +4003,28 @@ For more information see: The filter accepts the following options: @table @option -@item lum_expr +@item lum_expr, lum Set the luminance expression. -@item cb_expr +@item cb_expr, cb Set the chrominance blue expression. -@item cr_expr +@item cr_expr, cr Set the chrominance red expression. -@item alpha_expr +@item alpha_expr, a Set the alpha expression. -@item r +@item red_expr, r Set the red expression. -@item g +@item green_expr, g Set the green expression. -@item b +@item blue_expr, b Set the blue expression. @end table -The colorspace is selected according to the specified options. If -one of the @option{lum_expr}, @option{cb_expr}, or @option{cr_expr} +The colorspace is selected according to the specified options. If one +of the @option{lum_expr}, @option{cb_expr}, or @option{cr_expr} options is specified, the filter will automatically select a YCbCr -colorspace. If one of the @option{r}, @option{g}, or @option{b} -options is specified, it will select an RGB colorspace. +colorspace. If one of the @option{red_expr}, @option{green_expr}, or +@option{blue_expr} options is specified, it will select an RGB +colorspace. If one of the chrominance expression is not defined, it falls back on the other one. If no alpha expression is specified it will evaluate to opaque value. |
