setpix(1) [debian man page]

setpix(1) General Commands Manual setpix(1)

Name
setpix - Set FITS or IRAF image values

Synopsis
setpix [-vn] file.fts [x_range y_range value] [@valuefile]

Description
Set a specified pixel or range of pixels in a FITS or IRAF image to a specified value. More than one range of pixels and values may be
specified on one command line. A file of xrange yrange value triplets may be used to set multiple regions at once. The image may be over-
written or a new image created.

Options
filename
Name of IRAF image header file or FITS file. This must be present.

@coordfile
Name of file containing lines of the format
xrange yrange value where xrange and yrange are of the format n or n-n or n,n,n or n-n,n-n and value my be integer or
floating point. value will be converted to the type of the image. If a range is 0, the entire row or column specified by the other
non-zero range will be set to the indicated value. If both ranges are zero, the entire image will be set to the specified value.
New in version 2.6.4.

xrange yrange value
Image coordinate x and y ranges and the value to which that region will be set. Either one of these triplets or a file of triplets,
specified by @filename, must be present. xrange and yrange are of the format n or n-n or n,n,n or n-n,n-n and value my be integer or
floating point. value will be converted to the type of the image. If a range is 0, the entire row or column specified by the other
non-zero range will be set to the indicated value. If both ranges are zero, the entire image will be set to the specified value.
Ranges new in version 2.6.4.

-a <number>
Add constant to pixels

-d <number>
Divide pixels by constant

-i List each line which is dropped

-m <number>
Multiply pixels by constant

-n Write the output to a new file which is named by inserting an e before the file extension. The new file is always written to the
current working directory.

-s <number>
Subtract constant from pixels

-v Print more information about the process

Author
Doug Mink, SAO (dmink@cfa.harvard.edu)

6 July 2001 WCSTools setpix(1)

Check Out this Related Man Page

xy2sky(1)						      General Commands Manual							 xy2sky(1)

Name
       xy2sky - Compute RA Dec from X Y using WCS in FITS and IRAF image files

Synopsis
       xy2sky [-vbjg] [-n ndec] file.fts x1 y1 ... xn yn
       or
       xy2sky [-bdjgv] [-n ndec] file.fts @listfile

Description
       xy2sky  (pronounced X-Y-to-sky) is a utility for getting the world coordinates of a set of image coordinates in a FITS or IRAF image. World
       coordinate system (WCS) information in the image header describes, in a standard way, the relationship between sky  coordinates	and  image
       pixels. This information is used by the program to transform image coordinate (X,Y) pairs to right ascension and declination sky coordinate
       pairs. The current version of the program prints the coordinates at the same equinox as is given in the image header, but  future  versions
       will  allow transformations to B1950/FK4, J2000/FK5, or galactic coordinates. Input and output files in the Starbase format will eventually
       be allowed.

Options
       -a     Append input line after output position

       -b     B1950 (FK4) output

       -d     RA and Dec output in degrees

       -e     Output in ecliptic longitude and latitude in degrees.

       -f <number>
	      Set third dimension for 3-D projections such as CSC

       -g     Galactic longitude and latitude output

       -i     First column is star id; 2nd, 3rd are x,y position

       -j     J2000 (FK5) output

       -m <number>
	      Set mode for output of LINEAR WCS coordinates:  0: x y linear 1: x units y units 2: x y linear units units

       -n <number>
	      Number of decimal places in output RA seconds

       -q <year>
	      Output equinox if not 2000 (-j) or 1950 (-b)

       -t     Output as tab-separated table

       -v     More descriptive output -z Use AIPS classic projections instead of WCSLIB

See Also
       sky2xy(1)

Author
       Doug Mink, SAO (dmink@cfa.harvard.edu)

6 July 2001							     WCSTools								 xy2sky(1)

Linux and UNIX Man Pages

setpix(1) [debian man page]

Check Out this Related Man Page