128 N3680 Decoded Engine User Guide
G - Gain
Gain is used in Manual Style only (2P). Like a volume control, the gain modifier
boosts the signal and multiplies the pixel value. As you increase the gain, the noise
in an image is also amplified.
Example:
W - Target White Value
Sets the target for the median grayscale value in the captured image. For capturing
close-up images of high contrast documents, a lower setting, such as 75, is recom-
mended. Higher settings result in longer exposure times and brighter images, but
if the setting is too high, the image may be overexposed. Target White Value is only
available when using Photo Style (1P). (Default = 90)
Example:
D - Delta for Acceptance
This sets the allowable range for the white value setting (see W - Target White
Value). Delta is only available when using Photo Style (1P). (Default = 25)
40G Medium gain
64G Heavy gain (default)
96G Maximum gain
Gain at 40G: Gain at 64G: Gain at 96G:
nW Range: 0 - 255
White Value at 75W: White Value at 125W: White Value at 200W:
nD Range: 0 - 255
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