Sponge Tool
Hiding in with the Dodge and Burn tools is the Sponge tool, which works as if you have a sponge full of bleach, allowing you to paint across an image and soak up the color. Or you can do the opposite and intensify the colors—it’s all determined by the Mode menu setting in the options bar.
If you choose Desaturate, the Sponge tool tones down the colors in the area you’re painting. The more you paint across an area, the closer it becomes to being grayscale. This technique can be useful when you’d like to make a product stand out from an otherwise distracting background (Figure 11.87). With a very low Strength setting, it brightens yellowing teeth.
Figure 11.87. Background and foreground have been desaturated using the Sponge tool. ...
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