Code image quality checking device
AssigneeOlympus Optical Co., Ltd.
InventorShinzo Matsui
Life of this patent
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Abstract
A code image quality checker us provided which reduces the time required to check the quality of a code image having dots printed at high density. The code image quality checker includes a code image reader that captures the code image, performs binarization, detects the dots of the code image, and allocates a value of either 1 or 0 for each dot to provide dot arrangement data. In addition, the code image quality checker includes a parameter information output unit for outputting parameter information used to control adaptively the operation of each component of the code image reader in accordance with the quality of the code image.
Claims11
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.
Dependencies are inferred from the claim text.