Reads binary byte data from the standard input and outputs each int as text to the
standard output. The output is numbers in the range -128-127; unlike char2txt, which
outputs numbers in the range 0-255.
Output as text the bytes stored as binary data in test.byte:
cat test.Bbyte | byte2txt
The output has the form:
Print line numbers in output.
Assume output is voxel data with N components. Output will be annotated with voxel
number and component number.