Name
dumppix - dump pixels from a FITS image/cube to stdout
Synopsis
dumppix [-s rate] [-x col] [-y lin] image.fits
Description
dumppix dumps pixel values from a FITS file to stdout in a format that
can be read by gnuplot to display surfaces for example. As an image may
contain too many pixels for useful surface display, a subsampling fac-
tor may be applied before dumping pixels (see -s option).
Upon request, dumppix can only output the content of one line or one
column instead of the whole image (see -x and -y options).
Options
-s rate
Applies a brutal subsampling rate in x and y on the pixels
before dumping. Default is set to 1 (all pixels). Setting this
to 2 would skip 1 pixel out of 2 in each direction, for example.
-x col Output only the contents of column "col". The subsampling rate
can also be applied here. The convention for pixel positions is
FITS: x goes from 1 to NAXIS1.
-y lin Output only the contents of line "lin". The subsampling rate can
also be applied here. The convention for pixel positions is
FITS: y goes from 1 to NAXIS2.
Files
Input files can be images, cubes, or ASCII lists.