Color conversion method for camera-based PDP color inspection

Hyun Chul Do, Woo Seop Kim, Sung I.I. Chien, Heung Sik Tae

Research output: Contribution to journalConference articlepeer-review

Abstract

A low-cost and high-speed PDP color inspection system can be constructed by using a CCD camera against a colorimeter. Though the inspection can be done using RGB signals obtained by a camera, it has some difficulty to introduce human color sensitivity. Thus, it is quite desirable to convert the RGB values into the XYZ values that can be compared to the values of a colorimeter. Accordingly, the current study proposes a color conversion method that can analytically calculate the RGB-to-XYZ conversion matrix by utilizing the RGB primaries and the reference white. Experiments on Macbeth colorchecker colors showed that the average color difference between the converted XYZ values of the proposed method and the measured XYZ values of a colorimeter is much below the threshold of distinguishing two adjacent color patches.

Original languageEnglish
Pages (from-to)85-88
Number of pages4
JournalProceedings of International Meeting on Information Display
Volume1
StatePublished - 2006
Event5th International Meeting on Information Display - Seoul, Korea, Republic of
Duration: 19 Jul 200523 Jul 2005

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