Microtek ScanWizard Bio Reference Manual 51
G. Auto button
The Auto button automatically judges the darkest and whitest points and clips
excessive black or white points. The clipping percentage of the white/black
points is accessible by clicking the Setup button.
Using the White/Black Point tool:
1.
Choose the Channel in which the histogram will be modified.
2.
Move the black and white sliders to new points on the histogram.
•
Moving the black slider to the right will yield more contrast in the
highlight areas of the image, so that more detail emerges in the highlight
areas.
•
Moving the white slider to the left will yield more contrast in the
shadow areas of the image, so that more detail emerges in the shadow
areas.
Another alternative is to simply click the Auto button, so that the
shadow and highlight for the image is determined automatically.
3.
When the changes are done, click OK.
For more details on the effects of the other action buttons, see the section
“The Action Buttons”.
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