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| -rw-r--r-- | doc/filters.texi | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index bcc9687f20..6f3994a204 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -2854,6 +2854,11 @@ When set to 1, a green rectangle is drawn on the screen to simplify finding the right @var{x}, @var{y}, @var{w}, and @var{h} parameters. The default value is 0. +The rectangle is drawn on the outermost pixels which will be (partly) +replaced with interpolated values. The values of the next pixels +immediately outside this rectangle in each direction will be used to +compute the interpolated pixel values inside the rectangle. + @end table @subsection Examples |