the comment in resample's man page is really true.
it produces great output s-l-o-w-l-y.
i needed to convert some pic(1)tures to transparent gifs.
unfortunately gif(1) doesn't do that. so i took a snapshot
of the page window with
crop -i5 /mnt/wsys/$id/window | topng > $target
and fed the results to gimp. unfortunately, this failed
miserably. some of the lines were aliased by gs and gimp
got confused. i tried feeding an image 10x larger into gimp
and resizing, but the results were even worse! half the lines
were deleted.
resize to the rescue. i tried this and the results are much,
much better (available for pickup next wed :-)):
<$pdf gs -dNOPAUSE -dSAFER '-sDEVICE=plan9' \
'-sOutputFile=/fd/1' -dQUIET -r1000 \
'-dTextAlphaBits=4' '-dGraphicsAlphaBits=4' -|
resample -x10%|page
btw, is anyone working or thinking about working on gif? it
really does need to transparency right to handle stuff like
http://radar.weather.gov/ridge/radar.php?rid=ffc
i looked at it a while back for 5 minutes but wasn't quite
clear on the concept and had other things to do.
- erik
