| 摘要 |
A method and apparatus authenticating a bill. The method irradiates infrared light having a predetermined wavelength onto a print area of a genuine bill, stores transmitted light data of light transmitted through the genuine bill as reference data, irradiates infrared light having the predetermined wavelength onto a print area of the bill to be authenticated, and compares transmitted light data of infrared light transmitted through the bill with the reference data. The method further determines in advance at least two specific regions having different invisibility under different lights of different wavelengths in a print area of the bill, applies a predetermined weighting to the transmitted light data of light in the specific regions of the bill to be authenticated and the genuine bill, and compares the weighted data with each other. Based on comparison results the bill is authenticated. |
