Kodak 2500 - Manual (Page 30)

A-63055 December 1999 24
Binary Mode
Automatic Threshold Selecting Automatic Threshold automatically sets Brightness ,
Contrast , White Level From Paper , Gamma , Noise Reduction , and
Image Emphasis in accordance with the scanning resolution.
Automatic Threshold is valid only when a binary mode is specified
in Mode .
Select the mode best suited for the application:
• Mode 1—for dark documents.
• Mode 2—for normal documents.
• Mode 3—for light documents.
Halftone Mode
Automatic Separation When Automatic Separation is enabled, the scanner automatically
recognizes and separates text and photo. This function automatically
sets tonal gradation type. The text is scanned in binary mode and the
photo image areas are scanned in dither mode specified in
Dither .
Automatic Separation is valid only when a binary mode is specified
in Mode .
Binary mode Error Diffusion Automatic Separation
NOTES: Depending on the document, the text and photograph(s) may
not be perfectly separated.
If photographs are always located in the same positions,
instead of using
Automatic Separation , you could define a
region and select a dither pattern for that region.