Increasing Movie Quality
Movie quality can generally be increased by capturing the frames at a higher resolution (larger size), and
then reducing them prior to creating the movie. A method for doing this automatically
is defined below based on the pnmscale utility. The idea is to create a
subdirectory called moviefilm, or remove any previously created files in it,
and then to apply pnmscale to all the frame images with a reduction factor of 2.
This anti-aliases the images and makes them appear smoother by eliminating
jagged edges.
mkdir moviefilm
rm moviefilm/*.ppm
bash
for file in `ls *.ppm`; do pnmscale -reduce 2 $file > moviefilm/$file ; done
exit
Then make your movie from the reduced images in the moviefilm subdirectory.
The pnmscale utility can be obtained from the netpbm
project at SourceForge.