Chapter 10: Existence Inspection By Point Measurement; Outline - Sharp IV-S30J User Manual

Chapter 10: Existence Inspection by Point Measurement

10-1 Outline

The presence or absence of target objects is examined.
A simple black and white evaluation is made in the specified pixel area of
binary images.
The light level in the specified pixel area is averaged, and a decision is made
Purpose
whether or not it is within the specified range of brightness for gray scale
images.
Checking the presence or absence of packed parts, inspecting the working
condition of LEDs or fluorescent character display tubes, and sorting household
Applications
electric appliances
Inspection of 6 points
Examples
Inspection sequence
Image capture Binary image
conversion
Average light
10-1
Existence Inspection by Point Measurement
Number of points (max.):
128 points looking at average
light levels 256 points in binary
images
Point size: 2 m x 2n pixels
(m, n = 1 to 16)
Black/white evaluation
of points
Light level evaluation
level of points
10