On Thu, 22 May 2008, Ethan Merritt wrote:
[[about the PBM driver]]
> > -- I still use it fairly often
> > to generate individual frames for encoding into a movie with ppmtompeg
> > (which only groks a limited set of native input formats: PPM, PNM,
> > YUV, JPEG, and JMOVIE, but *not* PNG).
> That's not much of a reason.
> You could use the far more featureful png driver and interpose
> a png->pnm filter in the output:
> set term png truecolor enhanced font "verdana,11"
> set output '| convert png:- mypic.pnm'
Good idea, I'll play around the next time I make a movie. The
only problem is that crunching 3000 frames is already a cpu- and
disk-intensive process, and firing up ImageMagick for each frame
would make it considerably worse. What might be better would be
to do a pnmtopnm (part of netpbm) conversion on each frame, since
I already have a pnmchange (also part of netpbm) conversion there.
The netpbm programs are a lot lighter-weight than ImageMagick.
-- Jonathan Thornburg (remove -animal to reply) <J.Thornburg@...>
School of Mathematics, U of Southampton, England
"Washing one's hands of the conflict between the powerful and the
powerless means to side with the powerful, not to be neutral."
-- quote by Freire / poster by Oxfam