title: How to get images filenames from minibatch?
body: <p>I'm working on this tutorial:</p>
  
  <p><a href="https://github.com/Microsoft/CNTK/blob/master/Tutorials/CNTK_201B_CIFAR-10_ImageHandsOn.ipynb" rel="nofollow noreferrer">https://github.com/Microsoft/CNTK/blob/master/Tutorials/CNTK_201B_CIFAR-10_ImageHandsOn.ipynb</a></p>
  
  <p>The test / train data files are simple tab separated text files containing image filenames and correct labels like this:</p>
  
  <pre><code>...\data\CIFAR-10\test\00000.png    3
  ...\data\CIFAR-10\test\00001.png    8
  ...\data\CIFAR-10\test\00002.png    8
  </code></pre>
  
  <p>Assume I create a minibatch like this:</p>
  
  <pre><code>test_minibatch = reader_test.next_minibatch(10)
  </code></pre>
  
  <p>How can I get to the filenames for the images, which was in the first column of the test data file?</p>
  
  <p>I tried with this code:</p>
  
  <pre><code>orig_features = np.asarray(test_minibatch[features_stream_info].m_data)
  print(orig_features)
  </code></pre>
  
  <p>But, that results in printing the bytes of the images itself.</p>