FUJITSU C150-E187-01EN - Manual (Page 41)

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Edge Processing
This option specifies the sharpness of a scanned image.
Select "None", "Edge Extract", or "Smoothing (Background Removal)".
None
Edge processing is not performed.
Edge Extract
This option outputs an image with the edge extracted.
If this option is selected, the boundary between the black part and white part in a closed
area is traced and the edge extracted.
"DTC Variance" and "Edge Extract" are mutually exclusive.
Smoothing
This option smoothes the curves in an image by removing zigzag lines.
Emphasis
This option outputs an image with the edge emphasized.
"Emphasis High", "Emphasis Mid", or "Emphasis Low" can be selected.
If "Emphasis High" is selected, the image becomes sharper. If "Emphasis Low" is
selected, the image appears less distinct.
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Mirror
This option specifies whether to flip the scanned image over the scanning axis.
If this option is selected, a mirror image of the original image is obtained.
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Variance (Simple auto binary)
This option specifies the value for adjusting the dynamic threshold of an image based on the
brightness of the image.
A value is specified using the slider. The smaller the value, the lower the variance becomes.
The higher the value, the higher the variance becomes. To specify the value, drag the tab of
the slider to the desired setting position. The current setting is displayed on the right. This
option is mainly used for optical character recognition (OCR). It enables dark and bright
images in a document to be scanned effectively.