Corel PaintShop Pro X7, DE User's Guide Page 181

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Adjusting images 177
2 Click the Protect Image tab.
3 In the Before pane, pan and zoom as necessary so that you can
view the region you want to protect.
4Hold down Ctrl, and drag over the region you want to protect.
Note: Holding down Ctrl does not create a corresponding
crosshair in the image window of the Remove Noise tabbed area.
5In the Selected hue range group box, type or set values in the Hue
and Range controls.
Note: The existing settings reflect the area sampled. You can
manually adjust the hue knob by dragging it inside the ring.
6In the Protect selected hue range group box, drag any of the
seven graph handles downward to apply less correction and
smoothing to the corresponding segment of the hue range.
For example, dragging just the middle graph handle to the
bottom of the graph completely suppresses the midtone of that
hue range.
Note: The graph handles cannot be dragged laterally.
7 Click OK.
You can remove color adjustments for a selected color range by
clicking Reset Current. To remove all color adjustments, click
Reset All.
Removing chromatic aberrations
Chromatic aberration occurs when the camera records incorrect colors
within the image. In conventional film cameras, chromatic aberration
is usually caused by a lens defect. In digital cameras, several factors can
contribute to chromatic aberration, including the following:
The inherent lens aberration in the camera may cause fuzziness at
image edges. Photos taken with telephoto and zoom lenses are
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