[REBOL] Re: REBOL/Power-Tools/Graphics INVERT-IMAGE function!

From: jeff:rebol at: 1-Mar-2001 5:44

invert-image: func [
    im [file!] target [file!]
][
    save/png target to-image view make face [
        image: load-image im size: image/size effect: 'invert
    ]
]

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