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Image Permanence Evaluation by Color Gamut Volume Changes

机译：通过色域体积变化评估图像持久性

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摘要

Gamut volume is one of the parameters generally used for the characterization of printers and other imaging devices. However, it can also be used for monitoring color print fading. Relative gamut volume changes plotted as a function of the exposure dose can be conveniently used to determine the fading rate and corresponding lifetime. Calculation of the gamut volume is a challenge on its own, as a set of isolated points in three-dimensional space does not define a unique body in any obvious way. This problem has been addressed using the quick-hull algorithm combined with a non-linear convexing transformation of the measured data points and subsequent determination of the convex hull. In this article, the optimal degree of convexing is determined empirically on an extensive set of 19 samples including essentially all presently used photoprinting techniques. The actual use of gamut volume changes for monitoring of color print fading is illustrated on selected samples.
机译：色域体积是通常用于表征打印机和其他成像设备的参数之一。但是，它也可以用于监视彩色打印褪色。根据曝光剂量绘制的相对色域体积变化可以方便地用于确定衰落率和相应的寿命。色域体积的计算本身就是一个挑战，因为三维空间中的一组孤立点不会以任何明显的方式定义唯一的物体。使用快速船体算法，结合测量数据点的非线性凸变换和随后确定凸船体，可以解决此问题。在本文中，最佳的凸度是根据19个样本的广泛设置来确定的，这些样本基本上包括目前使用的所有影印技术。在选定的样本上显示了色域体积变化在监视彩色打印褪色中的实际用途。

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  • 来源
    《Journal of Imaging Science and Technology》 |2012年第6期|060506.1-060506.9|共9页
  • 作者

    Petr Dzik; Tomas Fuerst; Michal Vesety; Silvia Kacerova; Eva Stepankova; Hana Smejkalova;

  • 作者单位

    Brno University of Technology, Faculty of Chemistry, Purkydova 118, 612 00 Brno, Czech Republic;

    Palacky University Olomouc, Faculty of Science, 17. listopadu 12, 772 00 Olomouc, Czech Republic;

    Brno University of Technology, Faculty of Chemistry, Purkydova 118, 612 00 Brno, Czech Republic;

    Brno University of Technology, Faculty of Chemistry, Purkydova 118, 612 00 Brno, Czech Republic;

    Brno University of Technology, Faculty of Chemistry, Purkydova 118, 612 00 Brno, Czech Republic;

    Brno University of Technology, Faculty of Chemistry, Purkydova 118, 612 00 Brno, Czech Republic;

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