(05-25-2017, 04:57 AM)dinasset Wrote: I took an image with white BG, added transparency, selected the white BG area, cutted, saved as .gif and I see it with the transparent BG.
Check that:
-  the source image has transparency (layer>transparency>add Alpha channel) before cutting the white
- you look at the ouput .gif on a non white BG

(05-25-2017, 12:54 AM)iZeus Wrote: I currently have a GIF waiting to be used as a logo however the background's white.

How can I make the background transparent while saving the file as GIF

• Layer>Transparency>Add alpha channel (disabled if already done)
  
• Start the wand tool, and select the background (keep the standard Threshold). If there are isolated bits (inside of letters such as O), shift-click them to add them to the selection.
  
• Select>Grow by 2 pixesl
  
• Colors>Color to alpha and remove the white
  

(05-25-2017, 09:09 AM)Ofnuts Wrote:

(05-25-2017, 12:54 AM)iZeus Wrote: I currently have a GIF waiting to be used as a logo however the background's white.

How can I make the background transparent while saving the file as GIF

Don't use GIF. For logos, the PNG format does everything GIF does, better.

Then for clean and crisp edges without jaggies or white halo:

• Layer>Transparency>Add alpha channel (disabled if already done)
  
• Start the wand tool, and select the background (keep the standard Threshold). If there are isolated bits (inside of letters such as O), shift-click them to add them to the selection.
  
• Select>Grow by 2 pixesl
  
• Colors>Color to alpha and remove the white
  

File>Export as PNG

(05-25-2017, 07:16 AM)rich2005 Wrote: Go to this web page http://fence-post.deviantart.com/art/Color-to-Alpha-All-Layers-153804862 Top of the page is a download button to download a zipped file color_to_alpha_all_layers_by_fence_post-d2jkkla.zip

Unzip that and put the script fp-script-fu-color-alpha-all-layers.scm in your Gimp profile scripts folder C:\Users\your-name\.gimp-2.8\scripts.

Start up Gimp, open the gif file, change the color mode from indexed to RGB Image -> Mode -> RGB Some color operations do not work with color indexed files.

Start the script from Colors -> Color to Alpha All Layers. In the dialogue click in the Color to make transparent and choose black (white is default colour) Ok everything to apply

looks like this: http://i.imgur.com/15xSv6Q.jpg

Gives this: http://i.imgur.com/ePvqK8A.jpg just one layer showing, the swirly nature covers a lot when all layers are showing.

If you are going to do more editing, save your work as a Gimp .xcf file.

When completely finished, export as an animated gif and it will be converted back to color indexed mode.

(05-25-2017, 07:16 AM)rich2005 Wrote: Go to this web page http://fence-post.deviantart.com/art/Color-to-Alpha-All-Layers-153804862 Top of the page is a download button to download a zipped file color_to_alpha_all_layers_by_fence_post-d2jkkla.zip

Unzip that and put the script fp-script-fu-color-alpha-all-layers.scm in your Gimp profile scripts folder C:\Users\your-name\.gimp-2.8\scripts.

Start up Gimp, open the gif file, change the color mode from indexed to RGB Image -> Mode -> RGB Some color operations do not work with color indexed files.

Start the script from Colors -> Color to Alpha All Layers. In the dialogue click in the Color to make transparent and choose black (white is default colour) Ok everything to apply

looks like this: http://i.imgur.com/15xSv6Q.jpg

Gives this: http://i.imgur.com/ePvqK8A.jpg just one layer showing, the swirly nature covers a lot when all layers are showing.

If you are going to do more editing, save your work as a Gimp .xcf file.

When completely finished, export as an animated gif and it will be converted back to color indexed mode.

Quote:..Because I wanted basically this: http://imgur.com/a/ld5eH without the white parts.
Another image I did not a GIF but it's to serve as an example as how I wanted the GIF to turn out as: http://i.imgur.com/llA671b.png
A circle with nothing behind it, except a gif as the image.

(05-25-2017, 10:37 AM)rich2005 Wrote: When you wake up...

Quote:..Because I wanted basically this: http://imgur.com/a/ld5eH without the white parts.
Another image I did not a GIF but it's to serve as an example as how I wanted the GIF to turn out as: http://i.imgur.com/llA671b.png
A circle with nothing behind it, except a gif as the image.

There will be a few ways of doing that but first thoughts.

Get ofnuts plugin interleave-layers-0.4.py from http://sourceforge.net/projects/gimp-tools/files/scripts/ down near the bottom of the list.

That goes in your plugins folder C:\Users\your-name\.gimp-2.8\plug-ins
and still using fenceposts script.

1. Same as before, go into RGB mode
2. Make 2 'templates' same size as the gif. One, white with a center cut-out Two, the reverse of that with a center white.
3. Use ofnuts plugin (bottom of image menu) in title mode with the first template
see: http://i.imgur.com/6nIrB2a.jpg

4. That gets you a new image to work on: http://i.imgur.com/NODZ2kr.jpg
5. Now apply fenceposts script to remove all the white from the layers, gets you to here: http://i.imgur.com/8Ys0VwZ.jpg

That also removes the white stars so to put those back

6. Use ofnuts plugin in sprite mode and the second 'template': http://i.imgur.com/4oVpsYx.jpg

which produces this: http://i.imgur.com/Q61lbfE.jpg

edit: Funny white layer in the middle (layer 32-ish) to remove, otherwise guaranteed to give a headache, optimized to save a little file size, still too big for attaching so..

http://www.mediafire.com/view/ye3n12quky2o4y6/gif01-opt.gif