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léonie
User level: Level 10 (205,585 points)

Photos: How invert a positive photo to negative one

Helpful15Views14,121Last modified Jun 21, 2018 9:06 AM

Use the Curves adjustment and invert the RGB curve. Drag the definition point at then left (black) end up to 255 and the point for white at the right end down to 0.


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This user tip was generated from the following discussion: How invert a positive photo to negative one

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Originally posted at discussions.apple.com/docs/DOC-13181