Is there any automatic tool to remove edges from an image that has been anti-aliased onto a white ba

Posted by Macha on Super User See other posts from Super User or by Macha
Published on 2010-02-20T20:32:51Z Indexed on 2010/05/10 2:00 UTC
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image

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editing

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transparent

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background

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linux

I have a few images that have been anti-aliased onto a white background that I want to put on a transparent background. Just selecting it with the -wand tool/fuzzy select tool/select your terminology of choice- and deleting the background tends to leave a ring of off-white pixels around the image, or eat into the image depending on the tolerance setting. Is there some better way to do this, preferably an automatic tool? (I'm on Linux)

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