Function: framepair

FRAMEPAIR  Construct a new frame
  Usage: [F1,F2]=framepair(ftype,g1,g2,...);

  [F1,F2]=FRAMEPAIR(ftype,g1,g2,...) constructs two new frame objects 
  F1 and F2 of the same type ftype using the windows g1 and g2.
  The windows are specific to choosen frame type. See the help on frame*
  for the windows and arguments. 

  This function makes it easy to create a pair of canonical dual frames:
  simply specify 'dual' as window if one frame should be the dual of the
  other.

  This is most easily explained through some examples. The following
  example creates a Gabor frame for real-valued signals with a Gaussian
  analysis window and its canonical dual frame as the synthesis frame:

     f=greasy;
     [Fa,Fs]=framepair('dgtreal','gauss','dual',20,294);
     c=frana(Fa,f);
     r=frsyn(Fs,c);
     norm(f-r)

  The following example creates a Wilson basis with a Gaussian
  synthesis window, and its canonical dual frame as the analysis
  frame:

    [Fa,Fs]=framepair('dwilt','dual','gauss',20);

Url: http://ltfat.github.io/doc/frames/framepair.html

See also: frame, framedual, frametight.

Package: ltfat