Absolute Beginner's Guide to Digital Photography

2. Evaluate the image with Levels. Choose Image, Adjust, Levels to view a his-
   togram of the image, which enables you to evaluate highlights and shadow
   pixels.
   The Level’s histogram shows that the image has few white tones, or even light
   gray tones (see Figure 10.17). This means that it is too dark and has low con-
   trast.

146 ABSOLUTE BEGINNER’S GUIDE TODIGITAL PHOTOGRAPHY

FIGURE 10.16

This Soyuz

seems too dark.

Let’s fix it.

FIGURE 10.17

A histogram of

the dark image

shows that most

data is confined

to the dark side

of histogram.

This results in

little or no

contrast.