Syntax: unbinim (FITS file) bin=n binc=n binr=m [ef=filename] [-nozero] Bin a FITS file image or spectrum. This will bin a pixel scale image or spectrum or a linear wavelength scale spectrum. Overwrites original file(s). Options: bin=n : Bin in both columns and rows by n. binc=n : Bin in columns by n. binr=m : Bin in rows by m. ef=filename : Error FITS file. -nozero : Interpolate over zero regions.