Patent ID: 6976631

Claim:
In a code reader which reads a code of one dimension or two dimensions in non-touching fashion; a code reader for color images, comprising: color image pickup means for picking up the code and also a color image of a subject for management as is specified by identification information contained in said code; code-recognizing-data extraction means for extracting luminance data (Y) in accordance with operation expressions, Y=2R+3G+2B from the color image data (R, G, B data) picked up by said color image pickup means, and for writing gray scale data into a first frame memory as data for recognizing said code; and recorded-image extraction means for extracting color data (r, g, b data) in accordance with operation expressions, r=Y−2G−B, g=(Y−R−B)/2 and b=Y−2G−R from said color image data picked up by said color image pickup means, and for writing the color data into a second frame memory as data for the original image of the subject for management.