@inproceedings{gryaditskaya2014sky,
  title={Sky Based Light Metering for High Dynamic Range Images},
  author={Gryaditskaya, Yulia and Pouli, Tania and Reinhard, Erik and Seidel, Hans-Peter},
  booktitle={Computer Graphics Forum},
  volume={33},
  number={7},
  pages={61--69},
  year={2014}
}