function WT = threshold(WT,t)
% puts the details of WT to 0 if
% the absolute value is below t
scale = size(WT.Details,1);
for i = 1:scale
det = WT.Details{i}.s;
absdet = abs(det);
I = find(absdet >= t);
newdet = zeros(size(det));
newdet(I)=det(I);
WT.Details{i}.s = newdet;
end