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L*C*h color space

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All our 3nh brand colorimeters and spectrophotometers have this LABCH color space.

The  uses the same diagram as the L*a*b* color space, but uses cylindrical coordinates instead of rectangular coordinates. In this color space, L*indicates lightness and is the same as the L* of the L*a*b* color space, C* is chroma, and h is the hue angle. The value of chroma C* is 0 at the center and increases according to the distance from the center. Hue angle h is defined as starting at the +a* axis and is expressed in degrees: 0 would be +a* (red), 90 would be +b* (yellow), 180 would be -a* (green), and 270 would be -b* (blue). If we measure the apple using the L*C*h color space, we get the results shown below. If we plot these values on Figure 9, we obtain point (A).

L*C*h color space

L*C*h color space

L*C*h color space

General customers will use regular color space, LAB CH, to measure the value of L, A, B, C, H, at the same time.

All our 3nh brand colorimeters and spectrophotometers have this color space. 

NS810 spectrophotometer

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