Panasonic MICRO-IMAGECHECKER AX40 User Manual page 102

6.8.2 What is Feature Extraction?
Feature Extraction:
This is a function to count the number of the clusters of a certain size (an object) within the area. If the
number of counted objects is within the preset limitation, it will be judged "OK"; otherwise, it will be judged
"NG". The detected objects are sorted and the "features" of clusters from 1st to 99th are extracted.
Image Type
Shape of Area
Available Mask Area
Range of Measurement Results
Feature Data and Measurement
Results Range
Detection count = 3
Feature of object 1.....
Feature of object 2.....
Feature of object 3.....
*1
•
If the shapes of the objects are rectangle, circle or triangle, the angle of the principal axis
cannot be calculated. (Calculation of the angle may be infrequently performed, but you
cannot use the calculated data due to its instability. In this case, the angle of the principal axis
is output "180.0".
• If the number of detected objects exceeds 2000, an error code "E0073" will be displayed in
the message area due to inspection error (No ERROR signal will be output.). In this case, the
Detection Count is output "0".
94
Color/Gray (Binary)/Differential (Binary)
Rectangle/Circle/Polygon (3 - 16 points)
Possible to set up to 16
Detection Counts: 0 - 2000
Area 1 to 245760
Gravity X 0 to 511.9
Gravity Y 0 to 479.9
Projec. W in X 1 to 512
Projec. W in 1 to 480
Perimeter 1 to 245760
Angle -89.9 to 90.0, 180
Automatic detection
Possible to switch Detect/Not
Detect
(Under the Condition tab)
*1