Colour Management for Cholesteric Displays: Creation and Usage of ICC Colour Profiles

机译：胆甾型显示器的色彩管理：ICC色彩配置文件的创建和使用

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The effectiveness of large format reflective colour CHLC displays has been demonstrated for outdoor display applications. However, the optical qualities of the medium combined with unpredictable viewing environments pose a challenge to using mainstream ICCbased colour management solutions. The optical qualities of the CHLC and the difficulties they pose for metrology are discussed culminating in the recommendation of a diffuse normal (d:0o) measurement geometry (non-standard for graphic arts). A test-device is measured and an accurate characterization model developed using a polynomial regression method. The gamut shape of the CHLC medium is found to exhibit surface concavities, and a modified convex hull method is used to establish its gamut boundary descriptor before using a carefully selected gamut clipping algorithm to populate the ICC media relative rendering intent of a CLUT-based profile. Challenges to the CHLC’s ICC profile usage are discussed, including the lack of a standard viewing condition for outdoor displays and the issue of incomplete viewer adaptation. Expectations of the end-user are hard to manage, especially if clients intend to use the resulting colour profile with their existing desktop software. Usability issues relate to the different ICC profile formats MatrixTRC or CLUT). An alternative strategy of producing a ‘CHLC reference RGB colourspace’ is explored, and how it might be used within the limitations of mainstream soft-proofing tools for previewing an RGB output device.

机译：大型反射彩色CHLC显示器的有效性已在户外显示器应用中得到证明。但是，介质的光学质量与不可预测的观看环境相结合，给使用基于ICC的主流色彩管理解决方案带来了挑战。讨论了CHLC的光学质量及其给计量带来的困难，最终提出了建议使用漫射法线（d：0o）测量几何形状（图形艺术非标准）。测量测试设备，并使用多项式回归方法建立精确的表征模型。发现CHLC介质的色域形状表现出表面凹度，在使用精心选择的色域裁剪算法填充基于CLUT的配置文件的ICC介质相对渲染意图之前，使用改进的凸包方法建立其色域边界描述符。。讨论了CHLC的ICC配置文件使用方面的挑战，包括缺乏用于户外显示器的标准观看条件以及观看者无法完全适应的问题。最终用户的期望值难以管理，尤其是如果客户打算在其现有的桌面软件中使用最终的颜色配置文件时。可用性问题与不同的ICC配置文件格式MatrixTRC或CLUT有关。探索了一种产生“ CHLC参考RGB色彩空间”的替代策略，以及如何在主流的软校样工具的限制下将其用于预览RGB输出设备。

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《The 31st international congress on imaging science : Imaging science and technology in the digital era》|2010年|p.35-38|共4页
会议地点 Beijing(CN);Beijing(CN);Beijing(CN);Beijing(CN)
作者
Gregory High; Phil Green; David Coates; Chris Hughes;
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作者单位

London College of Communication;

London College of Communication;

Magink Display Technologies United Kingdom;

Magink Display Technologies United Kingdom;

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会议组织
原文格式 PDF
正文语种 eng
中图分类信息处理（信息加工）;
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Colour Management for Cholesteric Displays: Creation and Usage of ICC Colour Profiles

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