Hi Dave, > Ah, using pnmraw instead of pnm makes everything 2-3 times faster!
Yes, the textual netpbm formats are handy but processing of large images is quicker if the binary file format is used most of the time. > That brings the pnm approach down to only twice the time of my final > direct to jpeg approach which I guess I can live with. I know it's > nice and flexi but it still seems overkill passing round these raw > bitmaps from command to command. Beware that JPEG isn't an ideal format for line diagram web images. Having got Ghostscript to do the anti-aliasing and come up with perfect pixel values you don't want JPEG coming up with ugly artifacts as part of its lossy compression. This is one of my pet peeves with images in web `papers'. A non-lossy format like PNG preserves gs's careful output and most line diagrams compress very well without JPEG. Cheers, Ralph. _______________________________________________ Groff mailing list Groff@gnu.org http://lists.gnu.org/mailman/listinfo/groff
