CSV files (1-188).csv represent indexed images (quantization depth: 2^8) transformed from RGB (quantization depth: 2^24) dermoscopy images (digital camera: Minolta Dimage Z5 equipped with an epiluminescence lense with white halogen lighting; the working resolution is 2272x1704). File labels.csv includes class labels (1=melanoma, 0=displastic nevus) from a hist-pat examination. Forthcoming publication: The corresponding paper to this dataset will be available soon.