8-10
Chapter 8 ISIS/TWAIN Driver Settings
■
Mode-Dependent Function Limitations
The following tab sheet functions are partially disabled
according to the selected mode. For details on the
[Brightness] tab sheet settings,
.
✔
: available for setting,
–
: not available for setting, or auto
■
[Auto Image Type Detection Settings] Dialog
Box
This dialog box appears when you select [Auto Color
Detection], and enables you to make settings for detecting
whether scanned images are in color or black-and-white,
and select the mode to use when an image is detected as
black-and-white.
Color Saturation/Proportion of Color
These settings are for judging whether a document is in
color.
Depth of color in documents is detected by [Color
Saturation], and [Proportion of Color] is used to judge a
color document.
IMPORTANT
• Changing these settings is not normally necessary. Change
them only if you want a document of light colors to be judged
to be a black-and-white document.
• Select [24-bit Color] if color documents are judged to be black-
and-white documents with the default settings.
[Mode in case of binary]
Select the scanning mode when a page is judged to be
black-and-white.
Brightness and Contrast
Adjust the brightness and contrast when [Advanced Text
Enhancement] or [Advanced Text Enhancement II] is
selected for [Mode in case of binary]. For other modes, the
brightness and contrast are set on the [Brightness] tab
sheet.
Settings Tab Sheet
Basic
Image processing
Others
Desk
ew
M
o
ir
e R
edu
ct
ion
Edg
e em
phasi
s
Eras
e Dot
Bo
rd
er R
emo
v
al
Pre
v
ent B
leed Th
ro
ugh /
R
em
o
v
e B
ackgro
und
C
o
lo
r d
rop-out
JP
EG T
ransf
er
B
at
ch Sep
arati
on
(IS
IS dri
v
er)
P
res
ca
n
Scan
ning Mode
s
Black and White
✔ ✔ ✔ ✔ ✔
✔
✔
–
✔
✔
Error Diffusion
✔ ✔ ✔
–
✔
✔
✔
–
✔
✔
Advanced Text
Enhancement
✔ ✔ ✔ ✔ ✔
–
✔
–
✔
✔
Advanced Text
Enhancement II
✔ ✔
–
✔ ✔
–
✔
–
✔
✔
256-level Gray
✔ ✔ ✔
–
✔
✔
✔ ✔
✔
✔
24-bit Color
✔ ✔ ✔
–
✔
✔
–
✔
✔
✔
Auto Color
Detection
✔ ✔ ✔ ✔ ✔
✔
–
✔
–
–
