title: Using Google's Mobile Vision to recognize Text in a static image?
body: <p>I'm trying to write a basic ocr android app using Google's Mobile Vision API, but I'm having difficulty actually getting the app to recognize text in a static image. I've looked through the codelabs tutorial, other people's questions, namely every single stackoverflow question with the android-vision tag, and the documentation, but I still haven't had any luck. I know someone else asked a similar question but the answer posted there doesn't work.</p>
  
  <p>Here's an excerpt of my code</p>
  
  <pre><code>Bitmap photo = (Bitmap) extras.get("data");
          pictureOcrView.setImageBitmap(photo);
          Context context = getApplicationContext();
          TextRecognizer ocrFrame = new TextRecognizer.Builder(context).build();
          Frame frame = new Frame.Builder().setBitmap(photo).build();
          if (ocrFrame.isOperational()){
              Log.e(TAG, "Textrecognizer is operational");
          }
          SparseArray&lt;TextBlock&gt; textBlocks = ocrFrame.detect(frame);
  
          for (int i = 0; i &lt; textBlocks.size(); i++) {
              TextBlock textBlock = textBlocks.get(textBlocks.keyAt(i));
  
              Log.e(TAG, "something is happening");
              }
  </code></pre>
  
  <p>I don't understand what the issue is. It's not like I'm getting garbled text, I'm just not receiving any text at all. When I test this application with a picture of text that functioned for the codelab tutorial I get nothing. It seems like the textBlock array isn't even being created, but I don't know why. I know I've created the frame because I can still run other frame methods like getHeight successfully, and the isOperational() has been returning true. </p>
  
  <p>Any suggestions on what I'm doing wrong?</p>