{HEAD ~ A Fourier transform} is performed on the windowed spectral image data along the λ dimension, at locations along the x dimension and y dimension, to generate Fourier coefficients associated with each of {TAIL ~ the locations} 
{ HEAD ~ A Fourier transform } is performed on the windowed spectral image data along the λ dimension , at locations along the x dimension and y dimension , to generate Fourier coefficients associated with each of { TAIL ~ the locations }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL