function temp=itransform_128(x);
wname='db1';
temp1=idwt2(x(1:16,1:16),x(1:16,17:32),x(17:32,1:16),x(17:32,17:32),wname);
temp11=idwt2(temp1,x(1:32,33:64),x(33:64,1:32),x(33:64,33:64),wname);
temp=idwt2(temp11,x(1:64,65:128),x(65:128,1:64),x(65:128,65:128),wname);
temp=temp+128;
return