This standard provides a method for assessing visual color differences using the gray scale by comparing the perceived color difference between two non-self-luminous samples to a neutral gray sample in the gray scale. Tests are based on the sum of the color differences, including shade, luminance and chroma, but are not used to accurately assess these components individually. Since the uniformity of the sample surface and the clarity of the demarcation line can affect visual perception, measurement results may vary depending on the asperity of the sample and the clarity of the boundary. This method is particularly suitable for assessing the overall visual effect of color differences.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
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