Changing The Contrast And Threshold Values - Kodak SCAN STATION 100 User Manual

Changing the contrast and
threshold values
2-18
Black and White Adjustment — allows you to change the Contrast
and Threshold values. This option is only available if your output is
black-and-white.
• Contrast  adjusts the difference between black-and-white, thereby
making an image sharper or softer. To adjust the setting use the Up
and Down arrows and Select button to make a choice.
In a low contrast setting, the difference between black and white is
small, so the image is softer. In a high contrast setting, the difference
between black and white is large, so the image is clearer. Select a
contrast value from 1 to 100. The default is 50.
Contrast 1
Contrast 60
Contrast 100
• Threshold — converts a grayscale image to a black-and-white
image. The thresholding values range from 0 to 255. A low threshold
value produces a lighter image, and can be used to subdue
backgrounds and subtle, unneeded information. A high threshold
value produces a darker image, and can be used to help pick up faint
images.To adjust the setting use the Up and Down arrows and Select
button to make a choice.
200 dpi; 80 Threshold
20 Contrast
200 dpi; 80 Threshold
100 Contrast
A-61544 April 2006