AGFA Horizon Ultra Scanner, Руководство пользователя

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35 Chapter 3 — Calibrating the scanner
White Point
This tool calibrates the White Point of the scanner in reflective mode.
You should use this tool when the color balance or density reading of
the White Point of your scanner is not correct.
1. Note the Gray, Red, Green and Blue densities labeled on the
White Point target.
With a color densitometer you can also measure the individual
densities and use these values.
2. Place the White Point target on the top-center position of the
glass plate and close the cover of the scanner.
3. Double click the White Point tool.
4. Click Do to start the application.
A dialog box appears.
5. Enter the earlier noted RGB and Gray density values multiplied
by 10000.
E.g. Dred = 0.051 so the value to be entered is 510. The scanner
starts the calibration.