H2B - convert 8 bit hexidecimal floats to binary

h2b <stdin >stdout outpar=/dev/tty

Required parameters:
none

Optional parameters:
outpar=/dev/tty output parameter file, contains the
number of lines (n=)

Note: this code may be used to recover binary data from PostScript
bitmaps. To do this, strip away all parts of the PSfile that
are not the actual hexidecimal bitmap and run through h2b.

Note: that the binary file may need to be transposed using
"transp" to appear to be the same as input data.

Note: output will be floats with the values 0-255