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User’s Manual
4-14
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-1501B
Page 38: ...User s Manual 4 5 ...
Page 46: ...User s Manual 4 13 Error Diffusion Image ...
Page 49: ...User s Manual 4 16 Normal Photo Document Threshold 230 Normal Photo Document Threshold 230 ...
Page 61: ...User s Manual 4 28 The Compression tab dialog box ...
Page 65: ...User s Manual 4 32 The Color Dropout dialog box ...
Page 121: ...User s Manual 7 7 3 Close the reverse roller Cover 4 Close the ADF cover ...