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OCR Type A230
12.1 Gray Scale Window Checkers
Gray scale window checkers are used for calculating the average value for gray scale
brightness data within an area.
You can set up to 32 checkers per type for the A220, and up to 16 per type for the A100.
Area shapes and mask shapes can be either square, circular, or polygonal.
12.1.1
Menu Screen
6
No. (Checker No.)
Set the number of the gray scale window checker to be created.
1.
Select camera
Select which camera (A or B) will supply the image on which the gray scale window
checker is to be activated.
2.
Checker Setting
Create the check area and set parameters, etc.
3.
Average Judgment
If the average gray scale value in the inspection area is within the upper and lower
limits it is judged to be OK (= 1). The limits for average gray scale value judgment
can be set in the range 0 to 255.
The judgment results and average gray scale value value are displayed in the
upper right portion of the screen.
Gray Scale Window Checkers
12.1
Gray Scale Window Checkers
12 − 3
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