标准摘要
[中文适用范围]： ISO 20462 的这一部分是与静态图像质量的主观评估相关的多部分标准的一部分。 ISO 20462 a) 的这一部分定义了量化图像质量的单位（只是明显的差异，或 JND）； b) 描述刺激特性、观察者特征和任务指令对评级实验结果的影响； c) 提供了一个流程图，用于从 ISO 20462 后续部分中定义的方法中选择确定图像质量的首选心理物理学方法。 [外文原描述]： ISO 20462-1:2005 is part of a three-part standard pertaining to the subjective evaluation of pictorial still image quality. ISO 20462-1:2005 defines the units by which image quality is quantified (just noticeable differences, or JNDs); describes the influence of stimulus properties, observer characteristics, and task instructions on results obtained from rating experiments; and provides a flow chart for choosing the preferred psychophysical method for determining image quality from among those defined in subsequent parts of ISO 20462.
英文名称Photography — Psychophysical experimental methods for estimating image quality — Part 1: Overview of psychophysical elements