@article{article, title  = {{Properties of a general quaternion-valued gradient operator and its applications to signal processing}},

 publisher = {{Springer Verlag}},

 url = {{https://eprints.whiterose.ac.uk/id/eprint/97387 http://dx.doi.org/10.1631/FITEE.1500334 }},

 year = {{2016}},

 month = {{2}},

 author = {{Jiang M-D and Li Y and Liu W}},

 doi = {{10.1631/FITEE.1500334}},

 volume = {{17}},

 journal = {{Frontiers of Information Technology & Electronic Engineering}},

 issue = {{2}},

 pages = {{83-95}},

 note = {{Accessed on 2025/11/07}}}