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