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Old 02-01-2008, 09:40 PM
Torquil Macdonald Sørensen
 
Default Create MNG from PNGs

Hello,

Does anyone know of a good application to create an MNG-file from a set of PNG
files?

Imagemagick uses an extremely large amount of memory for this, maybe it
decomresses all the PNGs to RAM at the same time. At any rate, that makes it
unusable for me, given the number of PNG files I have. E.g. with 300 640x480
PNG files imagemagick uses over 600MB to create an MNG. In addition, I cannot
play it with the "animate" commmand, since that uses above 900MB, and the
process is then automatically killed on my computer (1GB RAM). I can,
however, display it with the "showimg" package. I want to do this with much
more than 300 images, so imagemagick cannot be used for this on my computer.

I tried the "advancecomp" package, but that didn't work on my PNGs, which are
created with PLplot. I was very hopeful about this program, because it
supports a fancy MNG mode where only differences between frames are encoded
(I have an animated plot with lots of constant parts).

I have not been able to find out if GIMP can create an MNG from set of
PNG-files through the Gimp Animation Plugin.

Any ideas?

Best regards,
Torquil Sørensen
 

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