title: MASK R-CNN ValueError: Could not find a format to read the specified file in single-image mode
body: <p>I'm working on MASK RCNN and object segmentation. I have images and xml files annotitations. However, I get an error after training started. Please help</p>
  <br>
  <p><strong>File &quot;C:...\lib\site-packages\imageio\core\functions.py&quot;, line 182, in get_reader
  &quot;Could not find a format to read the specified file in %s mode&quot; % modename
  ValueError: Could not find a format to read the specified file in single-image mode</strong></p>