38 Making Image Adjustments
Instead of the manual tonal adjustments above, the PhotoPlus Image menu
affords a number of functions you can apply to correct shadow/highlight values
in an image automatically. Adjust>AutoLevels or Adjust>AutoContrast may
do the job in one go; if not, you can use Adjust>Levels. or
Adjust>Shadow/Highlight/Midtone. (See PhotoPlus Help for details.)
Use the Histogram tab to display statistics and image color values,
helping you to evaluate the kinds of image adjustments that may be
needed.
Using adjustment layers
Adjustment layers are recommended for applying image adjustments
experimentally and non-destructively to your image.
The Adjustments tab lists available adjustments in a selectable adjustments list;
after selection, the tab displays a Settings pane for that adjustment (and for any
selected adjustment layer present in the Layers tab).
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