| http://www.w3.org/ns/prov#value | - In the judgment circuit 6, by using the binary signal 300 output from the binarization circuit 5 and the corrected signal 100 output from the correction circuit 3, the binarized regions in the periphery of the subject picture element to be binarized are made reference for the purpose of performing a determination whether there is a dot which has been turned on or not.
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