On Aug 26, 11:21*pm, Steve Allen wrote:
BITPIX = 8 means unsigned integers
BITPIX = 16 or 32 means signed integers

But this is as regards the actual values...no? My concern isn't the
values, but their relative positions. I'm guessing there is something
I am severely misunderstanding when it comes to FITS standards.

BZERO and BSCALE can be used to modify the meaning of the
linear transformation.

At this stage, the application doesn't understand these values.
However, the images in question don't make use them either.