title: How to scan inverted QR code using ZXing in Android
body: <p>I'm currently having a problem with detecting inverted QR code.
  The problem is that it detects normal QR code well but not inverted QR Code.</p>
  
  <p>I tried to find solution on google and stackoverflow but most of questions have no acceptable answers.</p>
  
  <p>I saw this article and I think this might be helpful but I don't know how to edit c++ file.
  <a href="https://stackoverflow.com/questions/9249526/invert-pixels-zxing">Invert pixels - zxing</a></p>
  
  <p>Here's my code.</p>
  
  <pre><code>setContentView(R.layout.activity_simple_scanner);
  setupToolbar();
  ViewGroup contentFrame = (ViewGroup) findViewById(R.id.content_frame);
  mScannerView = new ZBarScannerView(this);
  contentFrame.addView(mScannerView);
  </code></pre>
  
  <p>Here's a link to sample inverted QR code imgae.
  <a href="http://prntscr.com/dijmc8" rel="nofollow noreferrer">http://prntscr.com/dijmc8</a></p>
  
  <p>Is there anybody who knows solution?</p>