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.