| http://www.w3.org/ns/prov#value | - When the maximum value of the absolute values of the edge judgment amounts is larger than the threshold value TJ1 for edge judgment, the comparator 206 judges that there is an edge in a predetermined area including the area of the specified pixel P44 and the area close thereto, and then, outputs an edge judgment signal having the high level to a selection signal terminal SEL of a selector 208 and
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