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User’s Manual
9-15
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 FL-1401B
Page 1: ...Network Scanner User s Manual Regulatory model FL 1401B Avision Inc ...
Page 99: ...User s Manual 9 5 ...
Page 108: ...User s Manual 9 14 Error Diffusion Image Dynamic Threshold Dynamic Threshold AD ...
Page 111: ...User s Manual 9 17 Normal Photo Document Threshold 230 Normal Photo Document Threshold 230 ...
Page 123: ...User s Manual 9 29 The Compression tab dialog box ...
Page 127: ...User s Manual 9 33 The Color Dropout dialog box ...
Page 185: ...User s Manual 11 7 3 Close the reverse roller Cover 4 Close the ADF cover ...