Patent ID: 7324243

Claim:
A fluorescent color scanning method comprising the steps of: (a) using a light source of a predetermined brightness to scan a standard white so as to obtain a first reference white W 1 (R,G,B) in which R indicates red color; G indicates green color; B indicates blue color; (b) reducing the brightness of said light source, and then scanning said standard white to obtain a second reference white W 2 (R,G,B); (c) using said first reference white W 1 (R,G,B) as the standard to scan every scanning point and then storing the scanned result of each scanning point by means of Pm(R,G,B), in which m=1, 2, 3 . . . , m that represents the respective scanning point; (d) using said second reference white W 2 (R,G,B) as the standard to scan every scanning point of a document to be scanned and then storing the scanned result of each scanning point by means of Qm(R,G,B); and (e) comparing the value of Qm(R,G,B) to the value of W 2 (R,G,B), so as to determine if the document contains a fluorescent color or not subject to: (i) determining that the document contains a fluorescent color if Qm(R)>W 2 (R), Qm(G)>W 2 (G), or Qm(B)>W 2 (B), and then converting said Qm(R,G,B) into the accurate color output Om(R,G,B) based on said W 1 (R,G,B) through a conversion method, and (ii) determining that the document contains no fluorescent color if Qm(R)≦W 2 (R), Qm(G)≦W 2 (G), and Qm(B)≦W 2 (B), and then using the value of Pm(R,G,B) as the image output value.