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Proceedings Paper

The research of measuring method about color difference of tiles
Author(s): Ling Yang; Huijuan Yuan; Zhen Zhou; Qiang Cai; Li Wang
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Paper Abstract

Accurate grading is necessary to ensure the quality of tiles. The quantity of color difference is an important base for grading tiles. For this reason it is necessary to quantify the color differences of tiles. This paper presents a new method of using computer vision technology to measure color differences tiles. It uses CCD image sensors to obtain color images of tiles. The images are then processed with computer to produce the RGB of the color image. The image is then converted from RGB space to CIE1976L*a*b* color space. The character colors are then obtained. The color differences is then determined based on the character colors. A measure system and the color difference computing software were designed. Results from experiments were also given in this paper that color difference values with the different color index are larger than the same color index. The experimental results show that this measuring method can be used for real-time measuring for ceramic tiles.

Paper Details

Date Published: 20 January 2005
PDF: 6 pages
Proc. SPIE 5633, Advanced Materials and Devices for Sensing and Imaging II, (20 January 2005); doi: 10.1117/12.575734
Show Author Affiliations
Ling Yang, Harbin Univ. of Science and Technology (China)
Huijuan Yuan, Harbin Univ. of Science and Technology (China)
Zhen Zhou, Harbin Univ. of Science and Technology (China)
Qiang Cai, Harbin Univ. of Science and Technology (China)
Li Wang, Harbin Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 5633:
Advanced Materials and Devices for Sensing and Imaging II
Anbo Wang; Yimo Zhang; Yukihiro Ishii, Editor(s)

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