LSB steganography (text in image)

hello, can anyone help me to retrieve the text data from the watermarked image. Am obtaining the binary values of the text ie hidden.

f=imread('C:\Users\Bhavana\Desktop\satya\rvce_2012-14\imp\tech sem data\exeprgmas\original.png');
[visibleRows visibleColumns numberOfColorChannels] = size(f);
figure(1);
subplot(2,2,1);
imshow(f);
title('original image');
[m,n]=size(f);
[pixelCount grayLevels] = imhist(f);
subplot(2,2,2);
bar(pixelCount);
title('histogram of original image');

fid = fopen('C:\Users\Bhavana\Desktop\satya\rvce_2012-14\2sem seminar\seminar\REF\SIGNALS\watermark\q.txt');
x=fread(fid,'*char');
d=size(x);
binary = dec2bin(x);
binary_t=transpose(binary);
bin=binary-'0';
bb=padarray(bin,[27,137]);
[hiddenRows hiddenColumns numberOfColorChannels] = size(bb);

% Tile the hiddendata, if it's smaller, so that it will cover the original image.
if hiddenRows < visibleRows || hiddenColumns < visibleColumns
  watermark = zeros(size(bb));
  for column = 1:visibleColumns
    for row = 1:visibleRows
      watermark(row, column) = bb(mod(row,hiddenRows)+1, mod(column,hiddenColumns)+1);
    end
    end
    watermark = watermark(1:visibleRows, 1:visibleColumns);
else
    % Watermark is the same size as the original image.
  watermark = f;
end

      bit=1;
  for column = 1: visibleColumns
    for row = 1:visibleRows
      watermarkedImage(row,column)=bitset(f(row,column), bit, watermark(row, column));
      end
  end
  subplot(2,2,3);
  imshow(watermarkedImage);
  title('watermarked image');
  [pixelCount grayLevels] = imhist(watermarkedImage);
  subplot(2,2,4);
  bar(pixelCount);
  title('histogram of watermarked image');

recoveredWatermark = zeros(size(watermarkedImage));

for column = 1:visibleColumns
  for row = 1:visibleRows
    recoveredWatermark(row, column) = bitget(watermarkedImage(row, column), bit);
  end
end
% Scale the recovered watermark to 0=255
recoveredWatermark = uint8(1 * recoveredWatermark);

Answer 1

[Walter Roberson]

Add '0' to the binary values, char() the result, use bin2dec(), char() the result to get the text.