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by zrajm
2012-12-27T11:40:27-07:00
Forum: Users
Topic: Convert grayscale image to black plus transparency?
Replies: 16
Views: 22398

Re: Convert grayscale image to black plus transparency?

I had the exact same problem, and after much googling and reading of the ImageMagick documentation, this is what I've found. To make the make the black pixels of an image transparent and keep the white pixels as they are, run this command: convert source.png -alpha copy -fx '#fff' result.png To inst...