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HP
PrecisionScan Pro
User’s Guide
85
Adjusting images of
pictures
Book Contents
Index
➮
➮
Setting pixel output levels
The
Output Levels
control in the
Exposure Adjustment
tool lets you create interesting effects for images of
pictures.
When you change the
White
output level value to 0 and
the
Black
output level value to 255, the colors in the
image reverse.
Changing output levels
Use the
Output Levels
control in the
Exposure Adjustment
tool to create interesting effects in images of pictures.
The ranges for the numbers in the
White
and
Black
fields are set in the
Preference Controls
tab (see page
53
).
1
Click the
Output Levels
checkbox in the
Exposure
Adjustment
tool to select it.
The
White
and
Black
output levels controls appear in
the
Exposure Adjustment
tool.
2
Click on the one side of a slider,
– or –
type a different number in the
White
or
Black
field,
then press
Tab
or
Enter
,
– or –
click the UP or the DOWN spin button next to the
White
or
Black
field.
The result of the changes to
Output Levels
can be seen
in the preview area.
Appearance with
White
control = 255
Black
control = 0
Appearance with
White
control = 0
Black
control = 255