> From: Elie Zedeck RANDRIAMIANDRIRAY > and > From: Pete Whatever > > Damien wrote: > > Can this be true? > > > > Take a moderate image e.g. generated by the > > following command (it takes 6 minutes on my PC - > > but I am not complaining about that, its only > > for test purposes): > > > > # Make image > > > > convert -size 1500x2000 xc: +noise Random A.gif > > > > # Rotate the image > > > > convert A.gif +rotate 20 B.gif > > > > That took 148 seconds on my PC > > > > But Paint Shop Pro (poor man's Photoshop?) took < 2seconds > > to do the same. > > > > Seventy times longer is a HUGE difference. Any thoughts? > > > > Since version 6.4.1, things has gone a lot slower. Believe me, I've > tried many other cases than yours, but that version and later are > plagued by some nasty code. It really is within the core library, > because I was using the Magick++ binding, and the same slowness happened. > > If you want to get faster, use file format that don't require quantizing > (reducing of colors). If you use PNG for instance, you'll be amazed to > how fast things are compared to a GIF file. >
Thanks for your comments, however: a) Stuck with many gifs, years of work. b) Another program is 70 times faster doing the same. c) If both input and output are gif as in this case, colour quantizing should not be needed, but as you both suggest, it is probably occurring - which may possibly explain other problems (the post - `Colour Confusion'). Regards It should be as fast as any other way. If ImageMagick is quantizing gifs, that _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
