214 ABSOLUTE BEGINNER’S GUIDE TODIGITAL PHOTOGRAPHY
FIGURE 14.12
Low contrast:
The tones are
bunched toward
the middle of
the histogram;
almost no
whites or
blacks.
Low-contrast images can be saved by setting a new black point and a new white
point. When printing a conventional photograph, you start by trying to ensure that
the print will have bright whites and deep blacks, both with some detail. You might
make test prints before making a final print.
Black-Point and White-Point Setup
Photoshop lets you define black points and white points to improve the brightness
and contrast of an image simultaneously. Brighter images with sufficient contrast
are much more interesting than washed out, bland images. When you set black
points and white points, you first set the highlights, then the shadows, and finally
you tweak the midtones.
The following exercise shows you how to set up the Levels dialog box to improve
brightness and contrast for images that will eventually be printed. These steps apply
mostly to inkjet printers. The settings will differ for other kinds of printers, such as
dye-sublimation or laser printers.
- Open a low-contrast image in Photoshop and save it with a new name. Keep
the original safe in case you need to return to it. - Open the Levels dialog box by choosing Image, Adjust, Levels.
- Click twice on the black-point eyedropper to open the Color Picker box.