Saving time with Auto Tone and Auto Contrast

I'm about to slightly contradict myself. I'm going to use an auto mode and take manual …control of which auto mode I use. …You see, auto just isn't auto. Inside of the Levels dialog, you have several options …to choose from that will improve the accuracy of the effect. …I'm going to go ahead and apply an adjustment layer for levels and then click the submenu …to bring it up. Under Auto Options, you'll see the ability here to change which method …is used. For example, we can achieve an overall brightness and contrast adjustment and that's fine.;…however, I'm a bigger fan of using the Monochromatic or Per Channel. Monochromatic applies an overall …adjustment to all channels at once, and you have the ability to snap neutral midtones …to remove a bit of color cast.…

On the other hand, the Enhance Per Channel Contrast does a nicer job, especially if you …have white balance issues. …This is going to go through and analyze the channels independently. In this case it did …a nice job of removing some of that warm color spill. …