Panasonic A230 User Manual page 214

Gray Scale Edge Checkers
11.1 Gray Scale Edge Checkers
Point
Filter/Width
* Number of edges = count of edges detected for each
individual scan line.
In the above example, with Filter = 2 and width = 7, the 6th column is detected.
11 − 8
X: Edge position
Direction of the scan
Number of
edges
Number of
edges
Number of
edges
Number of
edges
*
OCR Type A230