http://www.w3.org/ns/prov#value | - wherein the second detecting unit detects the portion, other than the leading end portion, of the information image based on (i) the second criterion, (ii-a) a ratio of the width of the image area of interest to a maximum width of the black image areas and the white image areas, which are detected prior to the image area of interest and (ii-b) a ratio of the width of the image area of interest to
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