a complex quaternion FFT is computed.
</p>

<h2>See Also</h2>QTFM functions: <a href="qfft.html">qfft</a>, <a href="iqfft2.html">iqfft2</a>, <a href="iqdft.html">iqdft</a><br>
<h2>References</h2><ol><li>Ell, T. A. and Sangwine, S. J.,
'Hypercomplex Fourier Transforms of Color Images',
<i>IEEE Transactions on Image Processing</i>, <b>16</b>,
(1), January 2007, 22-35. 
DOI: <a href="http://dx.doi.org/10.1109/TIP.2006.884955">10.1109/TIP.2006.884955</a>.
</li><li>Salem Said, Nicolas Le Bihan, and Stephen J. Sa