embedding data in DWT subband using LSB Steganography?

Hi, I am attempting to do the above. code I have to so far. I need help to extract the hidden message from

stego image.please can someone help me?

%Cover Image
origIm = imread('lena.bmp');

% Discrete Wavelet Transform
[LL LH HL HH]=dwt2(origIm,'haar');
dec=[...
    LL,LH
    HL,HH
    ...
    ];

%figure;imshow(dec,[]);title ('DWT');
%[visibleRows visibleColumns] = size(origIm);

A = importdata('minutiaTest.txt');
binaryString = transpose(dec2bin(A,8));
binaryString = binaryString(:);
N = length(binaryString);

b = zeros(N,1); %b is a vector of bits
   for k = 1:N
       if(binaryString(k) == '1')
              b(k) = 1;
       else
              b(k) = 0;
       end
   end
%c=HH;   
s = HH;
%figure (1);imshow(s);
height = size(HH,1);
width = size(HH,2);

k = 1; Array=[];l=1;my=1;
   for i = 1 : height
       for j = 1 : width
           LSB = mod(double(HH(i,j)), 2);
             if (k>N || LSB == b(k))
                s(i,j) = HH(i,j);
                    l=k+1;
             else 
       if(LSB == 1)
           s(i,j) = HH(i,j) - 1;
       else
           s(i,j) = HH(i,j) + 1;
             Array(my)=l;
                l=l+1;
                    my= my + 1;
       end
                          k = k + 1;
     end
   end
   end

     %%%%%

    %figure (2); imshow(s);

    stego=idwt2(LL,LH,HL,HH,'haar');
    imwrite(uint8(stego), 'hiddenmsgimage.bmp');
    %imshow(stego);

    Stego = imread('hiddenmsgimage.bmp');
    %imshow(Stego);

   [LL LH HL HH]=dwt2(Stego,'haar');
  dec=[...
      LL,LH
      HL,HH
      ...
      ];
  %imshow(HH);
  %figure;imshow(dec,[]);title ('DWT');
  k = 1;my=1;ur=1;
  for i = 1 : height
    for j = 1 : width
      if( k<=N )
        if (my<numel(Array) && Array(my)==ur)
           b(k)=~(mod(double(s(i,j)),2));
        else
           b(k) = mod(double(s(i,j)),2);
        end
      k = k + 1;
      my= my + 1;
   end
   ur=ur+1;
    end
  end

%%%%

disp(b);

[elferoz]

Please, I would really appreciated it If someone could give me some advice. I am not asking for written code,just want advice on how to go about retrieving the hidden message