Banknote Processing Apparatus

A banknote processing apparatus is disclosed. The banknote processing apparatus includes a sensor unit configured to acquire image information of a banknote and project light alternately from red, green, and blue (RGB) light sources onto the banknote, and a control unit configured to (i) acquire per-color image information of the banknote for each RGB color from the image information and (ii) determine at least one of a denomination, an identification mark, an authenticity, and a fitness of the banknote based on the per-color image information.