On Tue 2008-08-26T17:06:53 -0700, gberz3 hath writ:
appears that the image is shifted to the right or left by so many
pixels and "wraps" around.

BITPIX = 8 means unsigned integers
BITPIX = 16 or 32 means signed integers

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

--
Steve Allen WGS-84 (GPS)
UCO/Lick Observatory Natural Sciences II, Room 165 Lat +36.99855
University of California Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m