How to Increase Color Saturation of a Picture in Mac OS X with Preview
An images color saturation is expressed by the intensity of the color of a picture, thus a picture modified with higher saturation will appear with vivid colors, and a picture with the lowest saturation winds up turning a picture to black and white. Adjusting saturation is a common photo editing technique to both enhance or decrease the vividness of a pictures color, and for the purposes here we will show you how to increase (or lower) the color saturation of any image in Mac OS X using the built in Preview app.