image2xy(1) Source extractor.


image2xy [options] fitsname.fits


Read a FITS file, find objects, and write out X, Y, FLUX to fitsname.xy.fits.


-e extension
Read from a single FITS extension
Overwrite existing output file.
-o file
Write XYlist to given filename.
-L order
Lanczos order
Don't use optimization for byte (u8) images.
Downsample by a factor of 2 before running simplexy.
-d factor
Downsample by an integer factor before running simplexy.
-D factor
Downsample, if necessary, by this many factors of two.
-s scale
Set median-filter box size (default 100 pixels)
-w width
Set Gaussian PSF sigma (default 1 pixel)
-g sigma
Set image noise level
-p significance
Set significance level of peaks in sigmas (default 8 sigmas)
-a saddle
Set "saddle" level joining peaks i sigmas (default 5 sigmas)
-P plane
Pull out a single plane of a multi-color image (default: first plane)
Don't do (median-based) background subtraction
-G background
Subtract this 'global' background value; implies -b
Set maximum extended object size for deblending (default 2000 pixels)
-S file
Save background-subtracted image to this filename (FITS float image)
-B file
Save background image to filename
-U file
Save smoothed background-subtracted image to filename
-M file
Save mask image to filename
-C file
Save connected-components image to filename
Verbose. repeat for more and more verboseness
image2xy 'file.fits[1]'
Process first extension.
image2xy 'file.fits[2]'
Process second extension
image2xy file.fits+2
Same as above


The team. Principal investigators are David W. Hogg (NYU) and Dustin Lang (CMU).