
 Smoothen the mask
 =================

 Video filter for CineWorks 1.02 or later.

 (c) Henrik Bjerregaard Pedersen and Oregan Software Developments, 1995


 This filter smoothens the mask by setting the pixel value of each pixel
to a weighted mean of the pixel and the 8 surrounding pixels.
 This gives a sort of pseudo anti-aliasing effect, which often greatly
improves the quality of keying and also of many transitions.

 The smoothing is achived using a 3x3 kernel:

                        1   1   1
                        1   4   1
                        1   1   1

 The filter should not be used if you intend to output the movie as Replay
using either the '15bpp RGB (50%)' format or the '15bpp YUV (50%)' format,
as these automatically anti-alias all edges introduced by transitions or
keying.

 Please notice: Version 1.02 (and earlier) of CineWorks does not apply
                filters to clips on mask/genlock tracks.
