Accurate Calculation of Color Gamut Boundary of Normal LCD Display Screen

ZHANG Jian-qing; JIANG Zhong-min; HUANG Qing-ming; WU Guang-yuan

doi:10.3788/fgxb20194001.0130

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Accurate Calculation of Color Gamut Boundary of Normal LCD Display Screen

Luminescence Applications and Interdisciplinary Fields | 更新时间：2020-08-12

- Accurate Calculation of Color Gamut Boundary of Normal LCD Display Screen
- Chinese Journal of Luminescence Vol. 40, Issue 1, Pages: 130-136(2019)
- 作者机构：
  
  1. 上海健康医学院医学影像学院上海,201308
  2. 上海理工大学出版印刷与艺术设计学院上海,200093
  3. 齐鲁工业大学(山东省科学院) 印刷与包装工程学院,山东济南,250353
- 作者简介：
- 基金信息：
  
  Supported by Shandong Provincial Natural Science Foundation(ZR2017LF027);Project o
- DOI：10.3788/fgxb20194001.0130
  CLC： O432.3
- Received：22 March 2018，
  
  Revised：09 July 2018，
  
  Published Online：20 August 2018，
  
  Published：05 January 2019
- 稿件说明：
移动端阅览
张建青, 姜中敏, 黄清明等. 普通LCD显示器色域边界的准确计算[J]. 发光学报, 2019,40(1): 130-136

ZHANG Jian-qing, JIANG Zhong-min, HUANG Qing-ming etc. Accurate Calculation of Color Gamut Boundary of Normal LCD Display Screen[J]. Chinese Journal of Luminescence, 2019,40(1): 130-136
张建青, 姜中敏, 黄清明等. 普通LCD显示器色域边界的准确计算[J]. 发光学报, 2019,40(1): 130-136 DOI： 10.3788/fgxb20194001.0130.

ZHANG Jian-qing, JIANG Zhong-min, HUANG Qing-ming etc. Accurate Calculation of Color Gamut Boundary of Normal LCD Display Screen[J]. Chinese Journal of Luminescence, 2019,40(1): 130-136 DOI： 10.3788/fgxb20194001.0130.

摘要

目前针对普通LCD显示器色域边界计算的研究较少，本文耦合迭代求解法和反向特征化计算方法提出一种准确快速计算普通LCD显示屏色域边界点的方法。其中的反向特征化计算方法是:利用GOG模型初步计算已知颜色点的近似输入值，然后利用正向特征化模型、原色的主刺激值与设备输入值的函数关系，采用逐步逼近法计算颜色点对应的输入值

RGB

。计算步骤为:首先确定迭代计算初始值，迭代计算任意色相面上任意仰角上的颜色的

XYZ

；然后计算

XYZ

值对应的输入值

RGB

；最后，以

RGB

来判断颜色点是否在色域边界上。实验结果表明，与SMGBD相比，本算法无需插值计算，需要的样本少，其计算结果比SMGBD更能满足实际需求。

Abstract

There is less study for ordinary LCD display color gamut boundary calculation. In order to accurately and quickly acquire the gamut boundary of an ordinary LCD display screen

a novel calculation method which coupled iterative method and the inverse calculation model was proposed. The reverse characteristic calculation method is:first

the approximation input values of the known

XYZ

were calculated using GOG model

and then the input value

RGB

of known

XYZ

was calculated by successive approximation method

a positive characteristic model and the function between the main stimulus and primary input value were adopted during the process of successive approximation calculation. The calculation steps are:the initial value of iterative calculation is appointed firstly

then

XYZ

of color point which belongs to any elevation angle on any hue surface is calculated by iterative computation. Then the device value

RGB

of the

XYZ

is calculated. Lastly

whether the color point located on the color gamut boundary is based on the values of

RGB

. Experimental results show that the new algorithm requires fewer samples and less computation time

and its calculation results can better meet the actual requirements than SMGBD. The results indicate that this method can well calculate color gamut boundary of ordinary LCD screen.

关键词

Keywords

references

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