Ell, Todd A. <br/><br/>
Quaternion fourier transforms for signal and image processing / 
Todd A. Ell (and two others). 
 - xxii, 127 pages :  illustrations (some colour) ;  24 cm. 
<br/><br/>Includes bibliography : page 117-121 and index. 
<br/><br/><label>ISBN: </label>9781848214781  RM280.31