title: Load images with OpenCV from assets folder in Android
body: <p>I'm stuck trying to load an image placed in assets folder with OpenCV 3.0 in Android. I've read a lot of answers here, but I can't figure out what I'm doing wrong.</p>
  
  <p>"my image.jpg" is place directly in the assets folder created by Android Studio.
  This is the code I'm using. I've checked and the library has been loaded correctly.</p>
  
  <pre><code>        Mat imgOr = Imgcodecs.imread("file:///android_asset/myimage.jpg");
          int height = imgOr.height();
          int width = imgOr.width();
          String h = Integer.toString(height);
          String w = Integer.toString(width);
  
          if (imgOr.dataAddr() == 0) {
              // If dataAddr() is different from zero, the image has been loaded
              // correctly
              Log.d(TAG, "WRONG UPLOAD");
          }
  
          Log.d(h, "height");
          Log.d(w, "width");
  </code></pre>
  
  <p>When I try to run my app, this is what I get:</p>
  
  <pre><code>08-21 18:13:32.084 23501-23501/com.example.android D/MyActivity: WRONG UPLOAD
  08-21 18:13:32.085 23501-23501/com.example.android D/0: height
  08-21 18:13:32.085 23501-23501/com.example.android D/0: width
  </code></pre>
  
  <p>It seems like the image has no dimensions. I guess because it has not been loaded correctly. I'va also tried to load it placing it in the drawable folder, but it doesn't work anyway and I'd prefer to use the assets one.
  Anyone can please help me and tell me how to find the right path of the image?</p>
  
  <p>Thanks</p>