Ricoh IS430 user manual ¡ Gamma correction

Image Scanner User's Manual

￿¡ Gamma correction

Function: To select following gamma correction settings:

Normal:	Emphasizes contrast slightly to improve a scanned image.
Sharp:	Emphasizes contrast to sharpen an image.
Smooth:	Weakens contrast to soften an image.
Linear:	Outputs an image as scanned.

User defined: Your own gamma correction curve is loaded into the scanner.

Usage: Select one of them depending on your original and output device.

If you want to correct an image finely, select the User defined setting to load your own correction curve.

Normal Sharp

Smooth Linear

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