Page 78
Manual
C.2.3.1 Threshold Dynamic / Threshold Fixed
Picture 78: Threshold method selector
In the color mode
Binary
an additional button allows to select between
Dynamic
and
Fixed
threshold.
Dynamic
The contrast level in the image varies depending on the content of the
document. This can help to improve fine details in the image.
Note:
In this mode set the setting of the contrast slider carefully because
unexpected image artifacts can occur if set to the extremes.
Fixed
The contrast level is fixed to a specific value.
C.2.3.2 Despeckle
Picture 79: Despeckle function
The
Despeckle
function is only available in color mode
Binary
.
This function removes isolated speckles in the image. Its use is recommended if old
documents on crumpled paper or vellum should be scanned.
Summary of Contents for WideTEK 42
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