nt_growmask

PURPOSE

ww=nt_growmask(w,margin) - widen mask

SYNOPSIS

function w=nt_growmask(w,margin)

DESCRIPTION

ww=nt_growmask(w,margin) - widen mask

  ww: widened mask (samples * 1 or samples * 1 * trials)

  w: mask
  margin: samples, number of samples by which to widen the mask

 NoiseTools

CROSS-REFERENCE INFORMATION

This function calls:

nt_fold y=fold(x,epochsize) - fold 2D to 3D
nt_unfold y=nt_fold(x) - unfold 3D to 2D

This function is called by:

nt_star2 [y,w,ww]=nt_star2(x,thresh,closest,w) - sensor noise suppression

SOURCE CODE

0001 function w=nt_growmask(w,margin)
0002 %ww=nt_growmask(w,margin) - widen mask
0003 %
0004 %  ww: widened mask (samples * 1 or samples * 1 * trials)
0005 %
0006 %  w: mask
0007 %  margin: samples, number of samples by which to widen the mask
0008 %
0009 % NoiseTools
0010 
0011 [m,n,o]=size(w);
0012 w=(w~=0);
0013 w=nt_unfold(w);
0014 w=filter(ones(margin+1,1),1,w)>0;
0015 w=flipud(filter(ones(margin+1,1),1,flipud(w))>0);
0016 w=(w~=0);
0017 w=nt_fold(w,m);