Ricoh ISO1 Operation Manual - Page 70

Brightness, Contrast

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SCANNER FEATURES Brightness Function Adjusts the brightness value between 1 and 255. A high brightness setting results in a lighter overall image, while a low brightness setting results in a darker overall image. Usage When scanning a dark image, the darker area may display as deep black, even though it has gray scales. When this occurs, increase the brightness setting to allow the shades of to gray appear. When a lighter image displays as pure white, decrease the brightness setting Lower Higher Contrast Function Adjusts the contrast value between 1 and 255. A high contrast setting emphasizes black and white, leaving few middle gray shades, while a low contrast setting emphasizes middle gray shades at the expense of black and white. Usage Set the contrast to a higher value for sharp contrast, and a lower value for a soft image. A-12 Lower Higher

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SCANNER FEATURES
A-12
Brightness
Function
Adjusts the brightness value between 1 and 255. A high brightness
setting results in a lighter overall image, while a
low brightness
setting results in a darker overall image.
Usage
When scanning a dark image, the darker area may display as deep
black, even though it has gray scales. When this occurs, increase
the brightness setting to allow the shades of to gray appear. When a
lighter image displays as pure white, decrease the brightness
setting
Lower
Higher
Contrast
Function
Adjusts the contrast value between 1 and 255. A high contrast
setting emphasizes black and white, leaving few middle gray
shades, while a low contrast setting emphasizes middle gray
shades at the expense of black and white.
Usage
Set the contrast to a higher value for sharp contrast, and a lower
value for a soft image.
Lower
Higher