Epson Perfection 640U Series, Справочное руководство

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Scanning Basics
Adjusting the Shadow Setting
Shadows, the darkest areas of an image, are the opposite of
highlights.
1. In the Image Controls dialog box, click the eyedropper button
under
Shadow
.
The pointer changes to an eyedropper, with movement
restricted to within the Preview window.
2. Move the eyedropper to the location you want to select as the
shadow point, and then click.
The brightness of the pixel at the point you click is set as the
shadow level, and the other parts of the image are adjusted
accordingly.
3. To change the shadow level (darkness) of the point you
selected, move the Shadow slider left or right, or enter a value
in the text box. You can enter a value between 0 and 60 for the
shadow.