{HEAD ~ Wavelet compression} is performed on {TAIL ~ the filtered data} along the x dimension and the y dimension to generate the compressed spectral image 
is performed on
{ HEAD ~ Wavelet compression } is performed on { TAIL ~ the filtered data } along the x dimension and the y dimension to generate the compressed spectral image
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH