"duc sequere aut de via decede" <[email protected]> wrote: > > If this is due to a memory size limit > > Ghostscript has memory limits which you can adjust with the MaxBitmap > parameter.
Thanks for the tip. I'll try running gs directly, then processing its results with ImageMagick. > > If I determine that one or more super-beefy computers > > For resource intensive work, we get the best results with a Linux- > derived 64-bit OS, plenty of memory (4GB, 8GB, 16GB), multiple cores, > and fast SAS disks. These specifications may come in handy. > Modern versions of ImageMagick run in parallel on multiple processors. I didn't know that. I probably have a very old version of ImageMagick. I can try upgrading ImageMagick and Ghostscript. > We have seen large image processing applications reduced from several > minutes to several seconds using a computer with the attributes > described above. Further processing has to be done on the images; rasterization is only the first step. Some of the steps are interactive and require operator input, so it must be possible to display the image. Therefore, having faster, more powerful computers definitely would provide a major benefit to the whole process. For best results, downsampling to 150dpi should be done at the very end of the pipeline, but of course that would increase the time it takes for each processing step. If the computers are fast enough, this won't matter. > > Wouldn't this give me 100dpi? > > Yes, however, supersampling works by having Ghostscript render at the > larger size and using ImageMagick's superior resizing algorithm to > produce better looking results, particularly, for font rendering. I'll have to compare a couple different resizing algorithms to see which is the best tradeoff. > Another option would be to purchase commercial grade fonts for > Ghostscript which may ameliorate the font quality without the > need for supersampling. The images don't contain any fonts, as far as PDF is concerned. All text is vector drawings, since much of the text tracks funny angles and curves. I'm dealing with maps, you understand. -- Andy Goth | http://andy.junkdrome.org./ ununun...@{aircanopy.net,openverse.com} _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
