User’s Manual
Threshold
Used to convert a grayscale image to a
bi-tonal image. The value ranges 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.
Adjust the threshold setting by dragging the
Threshold sliding bar to the left or right to
achieve the desired threshold setting.
200 dpi,
Threshold:80,
Brightness: 0
200 dpi,
Threshold:170,
Brightness: 0
4-11
Содержание DF-0902H
Страница 1: ...High Speed Document Scanner User s Manual Regulatory model DF 0902H Avision Inc ...
Страница 34: ...Error Diffusion Image 4 10 ...
Страница 37: ...User s Manual Normal Photo Document Threshold 230 Normal Photo Document Threshold 230 4 13 ...
Страница 48: ...The Compression tab dialog box 4 24 ...
Страница 50: ...The Color Dropout dialog box 4 26 ...
Страница 52: ...Remove Blue Threshold 20 Background 255 Remove Blue Threshold 20 Background Level 210 4 28 ...
Страница 63: ...User s Manual Detection Area Outside the Range Box Top 3 Bottom 7 4 39 ...
Страница 89: ...6 2 Roller ADF Pad ...
Страница 93: ...6 6 6 4 Replacing the ADF Paper Feed Roller 1 Open the ADF cover ADF cover 2 Lift the tabs Tab ...
Страница 95: ...6 8 5 Reinsert the paper feed roller cover and snap it into place 6 Close the ADF cover ...
Страница 104: ...User s Manual 9 3 Normal Rotated 4 60 Transport Timeout 4 33 Ultrasonic Detection 4 40 ...