M3 data is the same as C3 (jpeg compression) with the addition of
a block mask. This block mask indicates which blocks are empty
and not included in the file.
Remove faulty assumption that M3 data must have a pad pixel mask
even if the header says the pad pixel mask does not exist.
Remap the block offsets/sizes from masked to absolute so the normal
block lookup procedure works.
M3 data is the same as C3 (jpeg compression) with the addition of a block mask. This block mask indicates which blocks are empty and not included in the file.
Remove faulty assumption that M3 data must have a pad pixel mask even if the header says the pad pixel mask does not exist.
Remap the block offsets/sizes from masked to absolute so the normal block lookup procedure works.
Tested on the AFRL Greene 07 dataset.