Re: How to read and save GIFs with a transparent color?

Posted by Wayne Rasband on Aug 20, 2007; 8:50pm
URL: http://imagej.273.s1.nabble.com/How-to-read-and-save-GIFs-with-a-transparent-color-tp3698567p3698568.html

In ImageJ 1.39d, due by the end of the week, you can specify the color
to make transparent in the Edit>Options>Input-Output dialog. You can
also save stacks as animated GIFs.

-wayne

On Aug 20, 2007, at 4:02 AM, Ulf Dittmer wrote:

> Hello-
>
> It seems that ImageJ has no notion of transparent pixels in a GIF
> image (or at least none that I can find). Upon opening the transparent
> colors seem to be replaced by some real colors, and I can't find a way
> to specify which color to make transparent during saving.
>
> The GifEncoder class seems to have that capability, but it's not
> available the way it's used by the FileSaver class. Am I missing
> something? If not, is there any workaround to this?
>
> Many thanks in advance for any clues.
>
> Ulf
>