title: What are channels in tf.nn.conv2D?
body: <p>I've looked through some <a href="https://stackoverflow.com/questions/34619177/what-does-tf-nn-conv2d-do-in-tensorflow">great explanations</a> on what different arguments of tf.nn.conv2D represent, but I still can't understand what exactly in_channels and out_channels represent.</p>
  
  <p>Could someone please clarify this for me?</p>