function [af, sf] = filters2

% 3-channel perfect reconstruction filter bank
%
% USAGE:
%    [af, sf] = filters2
% OUTPUT:
%    af - analysis filters
%    sf - synthesis filters
% REFERENCE:
% See also: afb3, double_f1D.
% 
% FRAMELET SOFTWARE AT POLYTECHNIC UNIVERSITY, BROOKLYN, NY
% 

af = [
  0.00069616789827  -0.00014203017443   0.00014203017443
 -0.02692519074183   0.00549320005590  -0.00549320005590
 -0.04145457368920   0.01098019299363  -0.00927404236573
  0.19056483888763  -0.13644909765612   0.07046152309968
  0.58422553883167  -0.21696226276259   0.13542356651691
  0.58422553883167   0.33707999754362  -0.64578354990472
  0.19056483888763   0.33707999754362   0.64578354990472
 -0.04145457368920  -0.21696226276259  -0.13542356651691
 -0.02692519074183  -0.13644909765612  -0.07046152309968
  0.00069616789827   0.01098019299363   0.00927404236573
  0                  0.00549320005590   0.00549320005590
  0                 -0.00014203017443  -0.00014203017443
];
 
sf = af(end:-1:1, :);