@article{perceptuallyconsistentcolortograyimage,
  title = {Perceptually Consistent Color-to-Gray Image Conversion},
  author = {Shaodi You and Nick Barnes and Janine Walker},
  year = {2016},
  eprint = {1605.01843},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1605.01843v1},
}