A method is provided for tracking and analyzing changing skin conditions and displaying such conditions in an RGB image format on a three dimensional virtual model to facilitate research and consumer communication. The system involves building a catalog, library or database of skin conditions in the form of datasets taken from spectral images that include the skin conditions of interest. For each spectral image dataset identifying a skin condition of interest a corresponding RGB dataset is calculated and compiled in a database. The database of calculated RGB datasets is used to diagnose skin conditions of subjects by analyzing RGB or spectral photographs of the subject. The spectral or RGB data sets can also be used to predict the effects of proposed treatments and the resulting altered skin condition can be displayed in RGB images that are readily comprehended.
