I've been doodling in my sketchbook today. I scanned some results for JSVB, and by mistake I solarized the scan. Technically, what Photoshop calls solarization is only marginally related to the Sabattier Effect, where dark and light regions of an image are swapped, usually in a darkroom when an overhead bulb is accidentally turned on during the process of developing photographs.
In the case of Photoshop, it's easy enough to swap the colour inputs if you are messing with the properties of their curves in a histogram. In short, you're telling each colour pixel to display another opposite value. The effect can be interesting enough to share, especially if you don't have anything better to show for the day.
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