Patent ID: 6587591
Filing Date: 2003-07-01
Classification: G06K

Abstract:
A code image quality checker for checking the quality of a code image which contains a plurality of dots arranged in accordance with data and which is optically readably recorded In a given format on a portion of a recording medium, said code image quality reader comprising:imaging means for capturing the code image on the recording medium and outputting an image signal; binarization means for subjecting the image signal from the imaging means to binarization to output two-valued image data; restoration means for detecting the dots from the two-valued image data and allocating each of the dots detected for a value of either 1 or 0 to output dot arrangement data; adaptive read control means for adaptively controlling the operation of each of the imaging means, the binarization means and the restoration means according to the quality of the code image; and parameter information output means for outputting parameter information used by the adaptive read control means to control adaptively the operation of each on the imaging means, the binarization means and the restoration means, said parameter information being employed to check the quality of the code image.