Beyond Basic Photoshop: Using Levels

Using Levels
Correcting a poor exposure

After making the selected image the correct size and resolution, do the following:

1. Open Levels
2. Select Channels
3. Select Red and move the shadow (left) and highlight (right) triangles to where the histogram begins to ascend.
4. Select Green channel and do the same.
5. Select Blue channel and do the same.

This should be enough 99 percent of the time. If not, go to Levels RGB and adjust the midtones (middle triangle) just enough to correct facial tones, for example.