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User’s Manual
4-18
Brightness
Adjusts the lightness or darkness of an
image. The higher the value, the brighter
the image. Drag the slider to the right or
left to increase or decrease the brightness.
The range is from –100 to +100.
Contrast
Adjusts the range between the darkest and
the lightest shades in the image. The
higher the contrast, the bigger the
different grayscale. Drag the slider to the
right or left to increase or decrease the
contrast. The range is from –100 to +100.
Brightness: -50
Brightness: 0
(Normal)
Brightness: +50
Contrast: -50
Contrast: 0
(Normal)
Contrast: +50
Summary of Contents for AD340GF
Page 1: ...Document Scanner User s Manual Regulatory model DF 2008B Avision Inc...
Page 40: ...User s Manual 4 5...
Page 49: ...User s Manual 4 14 Error Diffusion Image Dynamic Threshold Dynamic Threshold AD...
Page 52: ...User s Manual 4 17 Normal Photo Document Threshold 230 Normal Photo Document Threshold 230...
Page 65: ...User s Manual 4 30 The Compression tab dialog box...
Page 69: ...User s Manual 4 34 The Color Dropout dialog box...