displayprojv.m

斯坦福大学的小波的工具箱 比matlab自带的工具箱更完善

function DisplayProjV(wc,L,qmf);

wcoef = ShapeAsRow(wc);
[n,J] = dyadlength(wcoef); 
t = (.5:(n-.5));
LockAxes([0 n 0 (J-L+1)]);
scale = .9;
w = wcoef(1:2^L);
for j = L:J-1,
  tj = n.*(.5:(2^(j+1)-.5))./2^(j+1);
  w = UpDyadLo(w,qmf) + UpDyadHi(wcoef(dyad(j)),qmf);
  maxw = max(w);
  newPlotSpikes(J-j,tj, scale .* (w./maxw),n);
  text(0,-j+J-1/5,sprintf('2^%d',-j+J));
end
axis off


% Written by Maureen Clerc and Jerome Kalifa, 1997
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