Bottom Edge Fade to Transparent

[stevelaw]

Hi,

I need to fade out the bottom edge of an image by increasing the transparency as it's approaching the edge. How would I go about doing this?

Thanks,
Steve

[fmw42]

dim=`convert image -format "%wx%h" info:`
convert image -size $dim gradient: -compose copy_opacity -composite result

You have to create a gradient image for the transparency and insert it into the alpha channel of the image.

see http://www.imagemagick.org/Usage/compose/#copyopacity

[anthony]

See IM Exmaples, Overlapping photos
http://www.imagemagick.org/Usage/photos/#overlap

Fixed the above link! _sorry 'bout that chief, missed it by that much!

[jpiquemal]

It's better with

[url]http://www.imagemagick.org/Usage/photos/#overlap[/url]