title: Create MS COCO style dataset
body: <p>How to create a <a href="http://mscoco.org/dataset/#download" rel="noreferrer">MS COCO style</a> dataset to use with TensorFlow? Does anyone have an experience with this? I have images, and annotations, as well as ground truth masks. I need to convert them to be compatible with MS COCO and any help is appreciated. I can't find any open source tool to create COCO style JSON annotations.</p>
  
  <p>TensorFlow MS COCO reads JSON files which I'm not very experienced with.</p>