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首页> 外文期刊>Journal of Imaging Science and Technology >Assessment of the Current Light-Fade Endpoint Metrics Used in the Determination of Print Life - Part Ⅰ
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Assessment of the Current Light-Fade Endpoint Metrics Used in the Determination of Print Life - Part Ⅰ

机译：用于确定印刷寿命的当前淡入淡出端点度量标准的评估-第一部分

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Print life estimation of consumer prints has historically been based on endpoint criteria defined in terms of changes in density (loss of density). This methodology has served the conventional silver halide community well for many years. The robustness of these endpoints for several new output technologies (thermal dye transfer, Ink jet, electrophotographic) was evaluated. Also, how well the current endpoints correlate to customer judgment of print acceptability is evaluated. This paper will discuss a psychophysical study conducted to determine if the current metrics, based on changes in density, are robust over several technologies and correlate well with customer judgments of print acceptability. Eight output systems from six distinct output technologies were used to assess the current endpoint criteria. Customer judgments of 16 scenes at 25 levels of degradation were correlated to objective metrics based on densitometric measurements of color tonescales. The data show that the current endpoint criteria are not robust over the digital output systems included in this study when compared to the results of the psychophysical study and are therefore inadequate for comparing print life estimates across the various digital output technologies.
机译：从历史上看，消费者印刷品的印刷寿命估算是基于根据密度变化（密度损失）定义的终点标准。这种方法已经为传统的卤化银社区服务了很多年。评估了这些端点对几种新输出技术（热染料转移，喷墨，电子照相）的鲁棒性。此外，还评估了当前端点与客户对打印可接受性的判断之间的相关程度。本文将讨论一项心理物理研究，以确定基于密度变化的当前度量标准是否对几种技术都具有鲁棒性，并与客户对印刷可接受性的判断良好相关。来自六种不同输出技术的八个输出系统用于评估当前的端点标准。客户对基于25种劣化水平的16个场景的判断与基于色阶的光密度测量的客观指标相关联。数据表明，与心理物理研究的结果相比，当前的终点标准在本研究中所包括的数字输出系统上并不稳健，因此不足以比较各种数字输出技术上的印刷寿命估算值。

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