Microtek ScanMaker i700 User Manual page 56

White/Black Points tool
green, blue) to modify that particular color channel.
If your Image Type is Grayscale, only the Gray channel is
available for selection.
2. Move the black and white sliders to new points on the histogram.
Moving the black slider
contrast in the highlight areas of the image, so that more
detail emerges in the highlight areas.
Moving the white slider
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 the dynamic range 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
file:///D|/sw56/AIC_WBP_tool.htm (4 of 4) [8/15/03 4:07:52 PM]
to the right will yield more
to the left will yield more
The Action Buttons.