User’s Manual
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 AD6090
Страница 1: ...Prodution Scanner User s Manual Regulatory model FT 1906H Avision Inc...
Страница 12: ...User s Manual 1 5 1 4 Removable Parts ADF Roller Reverse Roller Pick up Roller...
Страница 27: ...User s Manual 3 3 Document Feeding 1 Unfold the document feeder...
Страница 42: ...User s Manual 4 5...
Страница 51: ...User s Manual 4 14 Error Diffusion Image Dynamic Threshold Dynamic Threshold AD...
Страница 54: ...User s Manual 4 17 Normal Photo Document Threshold 230 Normal Photo Document Threshold 230...
Страница 67: ...User s Manual 4 30 The Compression tab dialog box...
Страница 71: ...User s Manual 4 34 The Color Dropout dialog box...
Страница 136: ...User s Manual 7 13...
Страница 138: ...User s Manual 7 15 3 Align the tab position and lift the tab UP as shown...
Страница 139: ...User s Manual 7 16 4 Close the ADF Roller Cover...
Страница 141: ...User s Manual 7 18...