Training and Testing Datasets for skin colour characterisation

The document includes three training datasets and a testing dataset for image-based skin colour characterisation. The three training datasets are respectively listed in the worksheets named FSCD, SSCC, CCSG, and the testing dataset is in the "Testing" worksheet. Each dataset contains a group of CIE XYZ tristimulus values measured using a CM-2600d spectrophotometer and the corresponding RGB values extracted from the captured RAW and JPG images.本数据集文件包含3组训练集与1组测试集，用于基于图像的肤色表征任务。3组训练集分别存放于命名为FSCD、SSCC、CCSG的三个工作表中，测试集则存储于名为"Testing"的工作表内。每组数据集均包含通过CM-2600d型分光光度计测得的CIE XYZ三刺激值（CIE XYZ tristimulus values），以及从采集的RAW与JPG图像中提取的对应RGB数值。