@article{anewimagecompressionbygradienthaar,
  title = {A new image compression by gradient Haar wavelet},
  author = {Yaser Sadra},
  year = {2017},
  eprint = {1704.08822},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1704.08822v2},
}