Research Article
Color Calibration for Colorized Vision System with Digital Sensor and LED Array Illuminator
Table 5
The comparison of
(Image),
C between captured images and reference value measured by SP60 before and after calibration.
| | Obtained by mapping (LED) | | | Blue printed matter | Middle region of ceramic tile |
| | Chromaticity coordinate measured by SP60 | | | | Precalibration (Image) | 17.63 | 30.93 | | Postcalibration (Image) | 4.92 | 5.82 | | Precalibration | 0.0236 | 0.0166 | | Postcalibration | 0.0092 | 0.0115 | | Improved ratio | 61.02% | 30.72% |
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