Quaternion polar complex exponential transform for invariant color image description

Xiangyang Wang, Wei-Yi Li, Hong-Ying Yang, Pei Wang, Yong-Wei Li. Quaternion polar complex exponential transform for invariant color image description. Applied Mathematics and Computation, 256:951-967, 2015. [doi]

@article{WangLYWL15,
  title = {Quaternion polar complex exponential transform for invariant color image description},
  author = {Xiangyang Wang and Wei-Yi Li and Hong-Ying Yang and Pei Wang and Yong-Wei Li},
  year = {2015},
  doi = {10.1016/j.amc.2015.01.075},
  url = {http://dx.doi.org/10.1016/j.amc.2015.01.075},
  researchr = {https://researchr.org/publication/WangLYWL15},
  cites = {0},
  citedby = {0},
  journal = {Applied Mathematics and Computation},
  volume = {256},
  pages = {951-967},
}