@article{flashlightensgraypixels,
  title = {Flash Lightens Gray Pixels},
  author = {Yanlin Qian and Song Yan and Joni-Kristian Kämäräinen and Jiri Matas},
  year = {2019},
  eprint = {1902.10466},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1902.10466v1},
}