Color Spaces; Color Tolerance Models - MICRO-EPSILON colorSENSOR CFO Series Operating Instructions Manual

Functional Principle, Technical Data
2.3
With the colorSENSOR CFO you can measure the following color spaces:
XYZ, xyY, L*a*b*, L+u*v*, L*u'v'
i
2.4
Relative color measurement is often referred to as color inspection. The color of the measuring object and the
reference sample is detected with the same sensor and the color distance (Delta E
the difference of the values.
i
The CFO controller works with a relative color measurement and thus with different tolerance models.
The permissible color distance for the color to be controlled is stored in a tolerance model. If the measured
value is outside the tolerance, the CFO controller outputs the switching output for Color not recognized. If the
measured value is within the tolerance, the corresponding output for the detected color is signaled.
The system can be set to the distance models Sphere (∆E), Cylinder (∆L; ∆ab), Box (cuboid, ∆L; ∆a; ∆b) and
Classify. These models form a tolerance space around the learned colors.
colorSENSOR CFO

Color Spaces

For more details on color spaces, please refer to
dat--Basics-of-colorimetry--en.pdf.

Color Tolerance Models

Note: The color distance between target and reference sample is determined with the same sensor
(Delta E ).
rel
https://www.micro-epsilon.com/download/products/
) is evaluated based on
rel
Page 12