#To make all other colors in picture except red transparent:
convert input.png -transparent 'rgb(255,0,0)' matteInput.png
convert input.png -matte matteInput.png -compose DstOut -composite output.png
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- 2015-06-13T15:56:35-07:00
- Forum: Users
- Topic: How to remove or make transparent all but one single color.
- Replies: 10
- Views: 22104