The method may further include performing wavelet compression of the filtered data along {TAIL ~ the x dimension} and along the y dimension to generate {HEAD ~ the compressed spectral image} 
The method may further include performing wavelet compression of the filtered data along { TAIL ~ the x dimension } and along the y dimension to generate { HEAD ~ the compressed spectral image }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD