Image provenance:

image1.jpg: Philippe Put,
  https://www.flickr.com/photos/34547181@N00/14499172124

image2.jpg: Peretz Partensky
  https://www.flickr.com/photos/ifl/3926001309

image3.jpg: Peter Harrison
  https://www.flickr.com/photos/devcentre/392585679


vis[1-3].png: Showing original image together with DeepLab segmentation map.