Setting White/Black Points; To Restore Original Settings - Microtek ScanMaker 6400XL Reference Manual

Setting White/Black points

There are two ways to set White and Black points:
1) Choose it from the Tag window, and 2) choose it directly from the Dropper
(holding down the Ctrl key to select Black point, and the Alt key to select White
point).

To restore original settings:

Select "No Correction" from the White/Black points menu.
- or -
Click on the "Reset" button.
Before restore After restore
Reference: The Preview Window 43