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4600rp, 4600g/4600r, 4800i User’s Guide 8 - 11
K - Gamma Correction
Gamma measures the brightness of midtone values produced by the image.
You can brighten or darken an image using gamma correction. A higher
gamma correction yields an overall brighter image. The lower the setting,
the darker the image. The optimal setting for text images is 50K.
0K Gamma correction off
(default)
50K Apply gamma correction for brightening typical document image
n
K Apply gamma correction factor
n
(
n
= 0-1,000)
Example of Gamma
Correction set to 50K:
Example of Gamma
Correction set to 0K:
Example of Gamma
Correction set to 255K: