Legacy ImageMagick Discussions Archive

That works great. Thanks!

fmw42 wrote: 2017-02-27T01:17:58-07:00 Perhaps it would be best to upload your image to some free hosting service such as dropbox.com and put the URL here so we can fully understand your problem.

Updated the question to include examples.

OS: MacOS
Version: ImageMagick 7.0.5-0 Q16 x86_64 2017-02-21 http://www.imagemagick.org

I have an image that is a black outline on transparent background.
https://www.dropbox.com/s/6t9r4m408ljre4e/shape.png?dl=0

I would like to select all black color and add a 2 pixel red border around it ...

What is your IM version and platform? Please always provide that, since syntax differs.

In Unix syntax, try this

convert pillAnim.gif[0] \
\( +clone -fuzz 20% -fill white +opaque "rgb(255,108,115)" -fill black +opaque white \
-morphology smooth octagon:1 -morphology erode octagon:1 \
-fuzz 0 ...

http://vis.lbl.gov/~daniela/2015/isvc15/pillAnim.gif

How would I crop one of the above images on the pink border (remove pink border as well)? I split the gif into individual frames as well. Seems like it should be easy but I cant get it working.

Version: ImageMagick 6.9.0-3 Q16 x86_64 2015-01 ...