height: <span class="extype" name="scala.Int">Int</span></span>)</span><span class="result">: <span class="extype" name="scala.Array">Array</span>[<span class="extype" name="scala.Double">Double</span>]</span>
      </span>
      </h4>
      <p class="shortcomment cmt">Converts an image to grayscale and retrieves its image pixels.</p><div class="fullcomment"><div class="comment cmt"><p>Converts an image to grayscale and retrieves its image pixels.</p></div><dl class="paramcmts block"><dt class="param">image