Search for matches between a color image patch and an input color image
Sangwine, S. J., Ell, T. A. and Moxey C. E., Vector Phase Correlation, Electronics Letters, 37(25), 6 December 2001, 1513-5. http://dx.doi.org/10.1049/el:20011035
T. A. Ell and S. J. Sangwine. Decomposition of 2D hypercomplex Fourier transforms into pairs of complex Fourier transforms. In Moncef Gabbouj and Pauli Kuosmanen, editors, Proceedings of EUSIPCO 2000, Tenth European Signal Processing Conference, volume II, pages 1061–1064, Tampere, Finland, 5–8 September 2000. European Association for Signal Processing
Quaternion Toolbox for Matlab r . [Online]. Software library, written by Stephen Sangwine and Nicolas Le Bihan. Available: http://qtfm.sourceforge.net/.