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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
Summary of Contents for AD345G Series
Page 1: ...Document Scanner User s Manual Regulatory model FF 2010B Avision Inc ...
Page 58: ...User s Manual 4 5 ...
Page 67: ...User s Manual 4 14 Error Diffusion Image Dynamic Threshold Dynamic Threshold AD ...
Page 70: ...User s Manual 4 17 Normal Photo Document Threshold 230 Normal Photo Document Threshold 230 ...
Page 83: ...User s Manual 4 30 The Compression tab dialog box ...
Page 87: ...User s Manual 4 34 The Color Dropout dialog box ...
Page 152: ...User s Manual 7 13 The thumbnail view and file name ...