title: Problems in generating a proper qr-code using zxing
body: <p>i have a problem in generating proper qr-codes with the zxing api.
  I am able to generate a qr-code but when i read the qr-code then chars like "äü" arent displayed right.</p>
  
  <p>code:</p>
  
  <pre><code>BitMatrix matrix = writer.encode(text, BarcodeFormat.QR_CODE, 200,200);
  //text is String text = "geändert";
  
  bufferedImage = MatrixToImageWriter.toBufferedImage(matrix);
  </code></pre>
  
  <p>If i start with "ü" then followed by "äö" then its displayed correct
  anyone knows why?</p>