Vertical Smoother 0.3

    Vertical Smoother filter for virtualdub - Copyright 2002 Valentim Batista
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    The author can be contacted at:
    Valentim Batista
    timsara@softhome.net
    http://www.oocities.org/gc_timsara/

This filter was built to smooth the picture in the vertical axis.
There is a strength configuration where the proportion of the bleding can be adjusted.
On version 0.2 a bug on script parameters loading was corrected. On version 0.3 a bug with uneven (modulo<>0) widths was corrected.

Technical note: each pixel is blended with the nearest ones in the same column and the contribution values for the four strengths are 1/16,14/16,1/16; 1/8,6/8,1/16; 3/16,10/16,3/16; 1/4,1/2,1/4;