User Guide

4-12 ScanWizard Pro TX User’s Guide
Using the Gradation Tool (LCH Mode only)
The
Gradation Gradation
Gradation Gradation
Gradation tool lets you adjust the midtones
(the mid-level grays) of the lightness channel “L”
of an image without altering the color itself. This
is because even with changes to the luminance
or lightness value, the chroma and hue values
are kept constant.
To prevent color images from losing saturation
when adjusting the lightness, ScanWizard Pro TX
provides a Saturation Range option. With this
option, colors outside of a given chroma range
are not affected by the manipulation of the
gradation curve.
In the example here, the original image is
underexposed, with the middle tones of the
image being too dark. The solution: Lighten the
tones to brighten up the image.
1. Insert the film holder with the image to be
corrected into your scanner.
2. Click the
OverviewOverview
OverviewOverview
Overview button to start a thumb-
nail overview of all your originals in the
JobJob
JobJob
Job
Panel Panel
Panel Panel
Panel window, then click on the thumbnail to
select the image. If thumbnail overview is not
required (
OverviewOverview
OverviewOverview
Overview skipped), click directly
on the imageless frame position in the
JobJob
JobJob
Job
PanelPanel
PanelPanel
Panel. Then click the
Prescan Prescan
Prescan Prescan
Prescan button to
obtain a prescan image.
3. Click the
Gradation Gradation
Gradation Gradation
Gradation tool in the
SettingsSettings
SettingsSettings
Settings
window. The
AIC:GradationAIC:Gradation
AIC:GradationAIC:Gradation
AIC:Gradation dialog will
appear.
4. Move the pointer over the curve, and drag the
center of the curve to the left. This will
brighten up the midtones of the image.
5. Check the
PreviewPreview
PreviewPreview
Preview box so that the prescan
image in the
PreviewPreview
PreviewPreview
Preview window is updated with
the latest correction. The update is done in
the background and so may take a few
moments to show.
6. Click
OKOK
OKOK
OK to confirm the correction.
Image corrected with Gradation tool
Original image