A system for authenticating sampled objects including a database, a plurality of spectrum measuring devices, and a plurality of computers. The database stores a plurality of reference patterns measured from known reference objects. Each of the spectrum measuring devices measures a region of respective sampled objects so as to produce spectral content information identifying the sampled objects. The spectral content information includes information indicative of colors inside the visible spectrum of the human eye. The computers have access to spatial analysis software. The computer receives the spectral content information identifying the sampled object and provides the spectral content information to the spatial analysis software to generate a unique measured pattern. The spatial analysis software compares the unique measured pattern with the reference patterns stored in the database, and outputs signals indicative of matches between the unique measured pattern with the reference pattern within a tolerance level whereby the colors of the regions of the sampled objects are utilized to authenticate the sampled objects.