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Study on the Method of Fetching Unbroken Tea Color with Computer

  • LI Jie ,
  • QI Gui-nian
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  • Department of Tea Science, Sichuan Agricultural University, Ya′an 625014, China

Received date: 2007-04-25

  Revised date: 2007-06-20

  Online published: 2019-09-11

Abstract

A new method of fetching unbroken tea color with computer,named L Method,has been established. The accuracy of the method was verified,and the further investigation also has been fulfilled. The results showed that the L method can fetch the color of tea accurately and quickly. Scanned with resolution 100βdpi,the credible interval(95%) of the result is: L=0,-0.45≤a≤0.45,-0.71≤b≤0.71. When the scanned area is 11βcm×11βcm or more,the color parameters of tea scanning photo may fully stand for the tea actual color. The SE is: -0.16≤L≤0.16,-0.13≤a≤0.13,b=0. There was obvious distinction between the color of unbroken tea and crush tea, so the later can't represent the tea actual color. Using computer to fetch color parameters is better than chroma meter.

Cite this article

LI Jie , QI Gui-nian . Study on the Method of Fetching Unbroken Tea Color with Computer[J]. Journal of Tea Science, 2007 , 27(4) : 328 -334 . DOI: 10.13305/j.cnki.jts.2007.04.012

References

[1] 王文杰. 电脑读取茶叶色泽参数的方法研究[J]. 中国茶叶加工, 2003(4): 36~41.
[2] 王文杰, 罗守进, 黄建琴, 等. 电脑测定茶叶色泽的方法研究[J]. 茶叶科学, 2005, 25(1): 37~42, 48.
[3] 严俊, 林刚. 测色技术在茶叶色泽及品质评价中的应用研究(一)表色系的选择[J]. 茶业通报, 1995, 17(1): 7~9.
[4] 严俊, 林刚. 测色技术在茶叶色泽及品质评价中的应用研究(二)茶叶色泽的测定[J]. 茶业通报, 1995, 17(2): 1~3.
[5] 柴啸龙, 罗笑南. 色彩管理的体系机理与模型分析[J]. 计算机科学, 2004, 31(12): 1~5.
[6] 周亦斌, 王俊. 新技术在茶叶品质评价中应用的现状及趋势[J]. 茶叶科学, 2004, 24(2): 82~85.
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