142
4.13 Patchcode Detection
This image filter detects the patchcodes on the images and decodes them. If a
patchcode cannot be recognized satisfactorily, the quality of the scanning images
can be improved by using other image filters. For instance, the filters listed below can
be used.
In order to obtain the optimum image quality and speed, it is recommended that the
settings of the image filters be adjusted while scanning an actual document.
Deskew
This straightens out the image skew.
Noise Removal
This reduces the image noise.
Line Removal
This restores the patchcode lines.
Smooth
This smoothes out the patchcode lines.
PATCH
II
PATCH
III
PATCH “T”