6 Vision Sensor Program [Vision Master]
108
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6.7.11
Color identification
You can use the color identification function to inspect object by its color.
Color indentification compares ROI average color of registered by user and that of the input
image.
Based on the average color value of registered ROI, extracted color from the input image within
the color value deviation is regarded as Pass, while extracted color from the input image out of
the color value deviation is regarded as Fail.
No. Item
Description
1
Color deviation
It is color deviation value in ROI.
2
Color deviation
mode
※
1
It sets mode to measure color deviation.
Color deviation mode is calculating method of pass range for the input
image based on the registered ROI average color value.
Depending on the color deviation mode, specific setting is different.
3
Color deviation
mode
- specific setting
Euclidean distance deviation
Manhattan distance deviation
Color deviation threshold:
It sets pass range based on the
ROI average color.
Red/Green/Blue:
It sets pass range by applying
deviation value to each of red,
green, blue color.
4
ROI average
color
It displays average color of ROI in a data value, depends on the set
color system (color area) mode.
(RGB/CIElab/HSV)
Item
Description
RGB
R (Red) / G (Green) / B (Blue)
CIELab
L: contrast (+white
↔
-black)
a: Saturation (+red
↔
-green)
b: Saturation (+yellow
↔
-blue)