Adjusting images 187
Many digital cameras offer a histogram display on the camera’s LCD,
and some cameras even let you adjust the scene’s histogram before
you take the photo.
Corel PaintShop Pro has various commands that display the histogram
in the dialog box. These commands include Curves, Levels, the
advanced mode of Smart Photo Fix, and Histogram Adjustment.
Example of histograms (right) for three different exposures.
Note the following when you look at a histogram:
• The left portion of the histogram reveals how much of the photo
is black or nearly black.
• The right portion of the histogram reveals how much of the photo
is white or nearly white.
The graph in the Histogram Adjustment dialog box displays the
number of pixels for each value of the selected channel. The vertical
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