Photoshop Top 40 #9 - Levels
The Levels command, and its cohort, the Histogram, let you adjust luminance levels on a channel-by-channel basis. The upshot is that you can increase contrast, correct for color cast, and make a bad image good. America likes its lists, and here's another one. Imaging expert and award-winning author Deke McClelland presents his list of the top 40 features in Photoshop—beginning with #40 and working his way up to #1—one weekly video at a time. Some are tools, others are commands, still others are conceptual. All are invaluable. Learn these 40 features and you'll know Photoshop.