Soumyabrata Dev Florian M. Savoy Yee Hui Lee Stefan Winkler 0001 Nighttime sky/cloud image segmentation. 345-349 2017 ICIP https://doi.org/10.1109/ICIP.2017.8296300 conf/icip/2017 db/conf/icip/icip2017.html#DevSL017