Microtek ScanMaker 6400XL Reference Manual page 78

Scan
8-bit color
10-bit color
12-bit color
CMYK
Gray
In the above table, 100% indicates purely black.
When the curve is moved up or down, the relationship between input value and
output value changes accordingly.
• In areas where the curve is moved down, pixels in that portion of the image
• In areas where the curve is moved up, pixels in that portion of the image are
Contrast in an image can be seen by the angle of the line. The steeper the slope,
the higher the contrast. The closer the line is to horizontal, the lower the
contrast.
70 Microtek ScanWizard Pro for Windows
Original brightness value
0 - 255
0 - 1023
0 - 4095
0 - 100%
0 - 100%
are darkened.
lightened.