Page 1 of 1
Bottom Edge Fade to Transparent
Posted: 2010-07-21T12:33:44-07:00
by 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
Re: Bottom Edge Fade to Transparent
Posted: 2010-07-21T13:31:08-07:00
by 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
Re: Bottom Edge Fade to Transparent
Posted: 2010-07-21T19:38:12-07:00
by 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!
Re: Bottom Edge Fade to Transparent
Posted: 2010-07-21T22:15:17-07:00
by jpiquemal