ak10+@andrew.cmu.edu (Andrew Joseph Kompanek) (06/01/89)
I recently wrote a simple postscript conversion program (without really knowing PostScript) to print 512 x 512 x 8 bit images captured with a frame buffer. I appended the image (converted to 2-digit hex) to an appropriately built postscript header file. The header consists a simple image command which uses a 256 character string as a read buffer. I was pleased to discover that my file did indeed print the image. However, it took the printer (a LaserWriter) on the order of 30 minutes to process it! How can I speed this up? 1. Will merely reducing the number of gray scales have a *significant* effect on printing time? (this shouldn't result in significant image degradation because of the size of the LaserWriter's default halftone "grid"). 2. Or increasing the size of the string? (This does not seem to be solution since I've seen output from other postscript conversion programs and they all use either a 256 or a 512 byte buffer). Any and all responses appreciated. Thanks ahead of time, Drew Andrew Kompanek Carnegie Mellon University - Class of '92 Research Assistant - The Robotics Institute