The following are the dumps of the four level-2 dequantized
sub-bands (LL2, LH2, HL2, and HH2). LL2 is reconstructed from level-3
sub-bands. LH2, HL2, and HH2 are generated by dequantizing the corresponding
decoded sub-bands, as shown in sections 4.2.4.2 and 4.2.4.2.1.