本技术报告涉及两幅相似图像之间色差的评估，其中两幅图像的输出介质和输出观看条件相似。它基于CIE和该领域其他专家此前发表的工作。报告首先回顾了影响色差评估的因素。描述了使用视觉和仪器方法评估色差的各种方法。介绍了一系列参考彩色数字图像。描述了一种统计分析平均色差的方法。最后总结了负责本报告的技术委员会的所有活动，并建议使用CIELAB或CIEDE2000评估在相同照明条件下并排显示在相同介质中的一对图像的色差。 该出版物以英文写成，并附有法文和德文的简短摘要。它由50页22个图表和7个表格组成。

This Technical Report is concerned with the evaluation of colour differences between two similar images where the output media and the output viewing conditions are similar for both images. It is based on previously published work by CIE and other experts in this field. The report begins by reviewing the factors affecting the evaluation of these colour differences. Various methodologies are described to evaluate colour differences using both visual and instrumental methods. A series of reference colour digital images are presented. A method for statistically analysing average colour differences is described. All the activities of the Technical Committee in charge of this report are finally summarized and recommendations are made to apply either CIELAB or CIEDE2000 for evaluating colour differences for a pair of images displayed in the same medium side by side under the same illumination conditions.The publication is written in English, with a short summary in French and German. It consists of 50 pages with 22 figures and 7 tables.