pazzani@ics.uci.edu (Michael Pazzani) (09/14/89)
The Apple LaserWriter has a facility to "smooth" bitmap graphics does a pretty good job of making 72dpi bitmaps look acceptable when printed at 300dpi. Does anyone know if these facilities can be accessed directly from postscript? I have a large number of bitmaps (from a Symbolics Lisp Machine) that are printed using the postscript "imagemask" procedure. I'd love to find a way to make them print on a laserwriter with the same quality as images produced by MacPaint. Thanks in advance, Mike pazzani@ics.uci.edu
hallett@pet3.uucp (Jeff Hallett x5163 ) (09/15/89)
In article <1989Sep14.163312.17575@paris.ics.uci.edu> Michael Pazzani <pazzani@ics.uci.edu> writes: >The Apple LaserWriter has a facility to "smooth" bitmap graphics does >a pretty good job of making 72dpi bitmaps look acceptable when printed at >300dpi. Does anyone know if these facilities can be accessed >directly from postscript? I have a large number of bitmaps (from >a Symbolics Lisp Machine) that are printed using the postscript >"imagemask" procedure. I'd love to find a way to make them print >on a laserwriter with the same quality as images produced by MacPaint. Well, this might be quite a problem. The smoothing that occurs for bitmaps is Apple-proprietary code and sits in the LaserPrep file as a binary executable. (This is why a lot of places have a problem uploading and printing with this beastie.) The best bet for you would be to find a way to convert the bitmap to PostScript. You may find that the bitmap gets reduced in scale to match the LaserWriter quality, but that will look better anyway. There are a number of routines to convert bitmaps to PostScript (and many other things too). The trick is getting the Symbolics files into one of those formats. -- Jeffrey A. Hallett, PET Software Engineering GE Medical Systems, W641, PO Box 414 Milwaukee, WI 53201 (414) 548-5163 : EMAIL - hallett@gemed.ge.com