Re: (ASAP) DISAPPEAR GIF 89a PLAINTEXT extension
Posted: 2009-06-07T22:01:50-07:00
Yes the GIF file format allows for a "comment" attribute. It does not however allow 'label' meta-data attributes.
This is looked at as part of the "montage" command in IM examples.
http://www.imagemagick.org/Usage/montage/#label
Specifically...
OR
You can see these with...
which returned...
Now if this is dissappearing it is because you did not try to preserve the meta-data.
For example overlaying a GIF onto another image will use the other images meta-data. The GIF meta-data will not be merged! To preserve the meta-data the 'destination' or 'background' image must be used in alpha composition.
This is looked at as part of the "montage" command in IM examples.
http://www.imagemagick.org/Usage/montage/#label
Specifically...
Code: Select all
convert -comment 'my_comment' rose: rose.gifCode: Select all
convert rose: -set comment 'my_comment' rose.gifCode: Select all
identify -format 'file: %f\ncomment: %c' rose.giffile: rose.gif
comment: my_comment
Now if this is dissappearing it is because you did not try to preserve the meta-data.
For example overlaying a GIF onto another image will use the other images meta-data. The GIF meta-data will not be merged! To preserve the meta-data the 'destination' or 'background' image must be used in alpha composition.