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