4-9
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
Содержание DF-0510
Страница 1: ...Color Image Scanner User s Manual Regulatory model DF 0510 Avision Inc ...
Страница 14: ...2 4 2 4 Fixing Paper on the glass board Align the document to the reference mark as indicated reference mark ...
Страница 44: ...4 20 The Compression tab dialog box ...
Страница 47: ...4 23 Remove Blue Threshold 20 Background 255 Remove Blue Threshold 20 Background Level 210 ...
Страница 54: ...4 30 Example Additional Length Detection Set Additional Length to be 2 02 inches 2 02 ...