Patent ID: 6598798
Filing Date: 2003-07-29
Classification: G06K

Abstract:
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: a color image pickup means for picking up the code and also a color image of a subject formanagement 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=R+2G+B 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=Yâˆ’2Gâˆ’B, g=(Yâˆ’Râˆ’B)/2 and b=Yâˆ’2Gâˆ’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.