Legacy ImageMagick Discussions Archive

Hello,

Is there a chance to optimize an animated GIF, which background moves constantly.
Example:
http://doppelbauer.name/animation.gif

It contains 64 times:
animation.gif[0] GIF 4096x64 4096x64+0+0 8-bit PseudoClass 128c 870KB 0.000u 0:00.000

Thanks a lot
Markus

Hello,

Identifing a MIFF file results in an infinite loop. The steps to
reproduce this issue:
ImageMagick 6.6.5-10 2010-11-22

Thanks a lot
Marcus

You are right - sorry for disturbing.
Markus

Hello,

This bug report belongs to this item:
http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=17032

Testcase (47x29 pixels, coalesced):

wget http://doppelbauer.name/test.gif
convert -verbose test.gif -layers optimize optimized.gif
identify optimized.gif
The problem, optimized.gif ...

Hi Anthony,

Thank you very much for your answer.
Could you provide me the link to the bug report?

Thanks a lot
Marcus

Hi Anthony,

Thank you very much for your answer.
Difficult to fix?

Thanks a lot
Marcus

Hi Anthony,

Thanks for pointing out. Maybe there is a bug, concerning "optimize"?

Testcase (47x29 pixels, coalesced):

wget http://doppelbauer.name/test.gif
convert -verbose test.gif -layers optimize optimized.gif
identify optimized.gif

The problem, optimized.gif[2] is a full image (47x29 pixels ...

Hello,

If I try to trim an already coalesced animated GIF image, the trim-tool
only checks the first frame. The resulting animated gif is croped and
has strange artefacts.

Testcase:

wget http://doppelbauer.name/test.gif
convert test.gif -trim +repage result.gif
firefox result.gif

Version ...

Juhu!
Thank you very much it works!
Marcus

Hello,

If we convert an animated gif, the result is destroyed.

Souce file:
http://www.doppelbauer.name/test.gif
Thank you very much
Markus

Hi fmw42,


Thank you very much!
It works!

Marcus

Hi fmw42,

Thank you very much for your answer.
I have added an example, here again the link:

http://www.doppelbauer.name/test-40x32.gif

Thanks!
Marcus

Hi Anthony,

Thank you very much for your answer.
But it does not work:

wget http://www.doppelbauer.name/test-40x32.gif
convert smiley-monksmile-40x32.gif -trim +page test.gif
identify test.gif
test.gif GIF 30x28 40x32+0+4 8-bit PseudoClass 64c 7.8e+02b
All browsers show the GIF 40x32 pixels ...

Hello,

I can't trim a GIF image, the canvas remains 40x32 pixels. As a
result, all browsers show the image with 40x32 pixels.

What I did:
wget http://www.doppelbauer.name/test-40x32.gif
convert -trim +page test-40x32.gif /tmp/test.gif
identify /tmp/test.gif

Result:
test.gif GIF 30x28 40x32+0+4 8 ...