Step 3: Hello, Histogram

The histogram (the red, green, and blue mountain range near the bottom of the Advanced Editing Dashboard) is the CAT scan of digital photography: It provides a graphical view of the image's brightness and color range at the per-pixel level-dark to the left, bright to the right. A general rule of thumb is that the histogram's peaks should be centered or slightly to the right-hand side of the graph. Notice that in the screenshot, our peaks are - like Ted Kennedy - a little left of center.

The Advanced Editing Dashboard is your manual interface to the Enhance button's one-click fix.