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

From: robbo1mark:aol at: 1-Mar-2001 9:34

Jeff, Your solution is much more elegant in it's use of the visual interface dialect effect 'invert, however what I was trying to show that is indeed still possible to write graphics routines and functions that albeit slower are still functional using basic core commands without using black-box functions like the VID in-built effects. Hope this clears the confusion. Mark Dickson In a message dated Thu, 1 Mar 2001 8:59:44 AM Eastern Standard Time, [jeff--rebol--net] writes: << invert-image: func [ im [file!] target [file!] ][ save/png target to-image view make face [ image: load-image im size: image/size effect: 'invert ] ]