Legacy ImageMagick Discussions Archive

I'm trying to add a watermark stamp to a gif image. I have a script which works fine for JPGs: But when applied to GIF files they result in a grey only bitmap. I tried to convert stamp.png to stamp.gif first, but to no avail.

Input looks like that:
Image:

Stamp:


IM runtime is ImageMagick 6.7.1-0 2011-07-06 Q16 (Windows 7) and ImageMagick 6.5.7-8 2010-12-02 Q16 (Ubuntu). Result is the same on both:

How can I apply this watermark to the image?

jpg does not support transparency. you would likely need to flatten your transparent image with some background color first. Or save your output as png or gif or tif

Or save your output as png or gif or tif.

This is what I am trying. Input is GIF and PNG, output is GIF. But the merging of the two yields bad results.

try this, it works for me. note your large image has two frames and a virtual canvas. use +repage to remove the virtual canvas and use just the first frame.

convert zahnarzt1.gif[0] stamp.png +repage -gravity south -geometry +0+10 -compose over -composite result.gif

Also see Animation Modifications
http://www.imagemagick.org/Usage/anim_mods/#annotating
And Image Annotation, Watermarking
http://www.imagemagick.org/Usage/annota ... termarking

Fred however is right you have two frames with slight differences in 'dithering', Especially in E-Dither 'speckle' on the Ken Doll's pants. But no real animated differences between the two frames.

For more help more detail of what you want to achieve is needed.

Thanks for your help, it worked.
Someday I will be grown up and understand all this - or at least some of it.