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10.5: Invert colors of images with Preview.app
Authored by: wjv on Mar 09, '09 08:00:52AM

It's somewhat odd that if you do this, and then use the "Reverse black and white" feature of Universal access (ctrl-opt-cmd-8), you don't get exactly the original image back. The colours are somewhat "off".



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10.5: Invert colors of images with Preview.app
Authored by: Lou Kash on Mar 09, '09 08:42:17AM

I admit that I didn't play with it that much, as I only found out by accident. For precise editing I'm using Photoshop anyway, but Preview.app is often sufficient for some "quick'n'dirty" stuff. And it's possible that it's not a feature, but a bug. With Apple, you'll never know... :D

(As a side note, there IS a nasty bug with the Adjust Colors panel: if you adjust colors and then you e.g. change the size/resolution of the image, the adjust setting will be applied AGAIN. You will have to click the Revert button to get the expected result of your editing...)



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10.5: Invert colors of images with Preview.app
Authored by: wjv on Mar 10, '09 05:59:44AM

Oh, I just meant it as a random comment, not a criticism! :)



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10.5: Invert colors of images with Preview.app
Authored by: gluebyte on Mar 09, '09 04:06:30PM

I noticed that, if you move the brightness slider to the left, you get a better invert image.



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