Forcing A Gamma Curve To Linear; Exiting The Gamma Curve Editor Dialog - Nikon Scanners Software Reference Manual

The Gamma Curve Editor Dialog
Highlight control point
moved to right
Original curve
Resulting curve after control
points were moved
Shadow control point
moved up and to left
Figure 16.26 Graphically altering a gamma curve.
This technique, while providing the finest control over the image, will require a
good deal of trial and error to achieve the best results. Depending on how critical your
results are and how much time you have to achieve them, you may want to rely on the
scanner's automated gamma controls instead.

Forcing a Gamma Curve to Linear

In some cases, a linear gamma curve offers a better starting point for adjustments
than the default gamma curve. Clicking the Force Linear button in the Gamma Curve
Editor dialog, shown in Figure 16.27, 'forces' whichever gamma curve is active to a lin-
ear, or 1:1 state.
Figure 16.27 The Force Linear button.

Exiting the Gamma Curve Editor Dialog

There are two ways to exit the Gamma Curve Editor dialog, thereby returning
control to the Scan dialog. These are C
between the two is that C
editing session, while D
gamma curves to be sent to the scanner as custom gamma curves.
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and D
ANCEL
does not save the results from the current gamma curve
ANCEL
does. In addition, D
ONE
Chapter 16
. In short, the difference
ONE
assumes that you want the new
ONE
Software Reference for Scanners