Added mask visualization part to inference part and add out_file interface. (#403)
Added mask visualization part to inference part and add out_file interface. (#403)

* Update README.md

* Update inference.py

* Update README.md

* Update inference.py

Added mask visualization part for inferring.

* Update README.md

* Update inference.py

* Update inference.py

convert all tabs to spaces

* Update inference.py

open-mmlab/mmdetection,open-mmlab/mmdetection