Astronomical Data Analysis Software and Systems IV ASP Conference Series, Vol. ... The software then accesses the data, decompresses the scans and returns the data in a form of a photographic intensity as a function of x and y plate pixel coordinates. ... New Tasks in or to be Added to GASP/STSDAS getimage accesses the Digitized Sky Survey (DSS) CD ROMs and decom­ pressed the data returning a photographic intensity as a function of x and y pixel coordinates. ...