
4-15
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:50,
Brightness: 0
200 dpi,
Threshold:100,
Brightness: 0
Содержание AD345GF
Страница 1: ...Document Scanner User s Manual Regulatory model DL 2011B Avision Inc...
Страница 27: ...3 11 Document Feeding 1 Unfold the document feeder and its extension 2 Raise the paper stopper...
Страница 42: ...4 5...
Страница 51: ...4 14 Error Diffusion Image Dynamic Threshold Dynamic Threshold AD...
Страница 54: ...4 17 Normal Photo Document Threshold 230 Normal Photo Document Threshold 230...
Страница 67: ...4 30 The Compression tab dialog box...
Страница 71: ...4 34 The Color Dropout dialog box...
Страница 99: ...4 62 4 10 The Rotation Tab The Rotation tab allows you to set the following image rotating options...
Страница 127: ...User s Manual 7 4 5 Press and wipe the rollers one by one Rotate the roller until the surfaces are completely cleaned...
Страница 140: ...7 17 3 Move the belt UP as indicated 4 Move the tab of the ADF roller DOWN as indicated...