| 摘要 |
PURPOSE:To execute the correct character recognizing by providing a black base extracting means besides the stroke extracting means. CONSTITUTION:When a tracking point exists at a picture element 31 shown by labels d and l, the bit [the bit is '1' since it includes (d) in the label.] of a position A1 in the labels (d) and l is noticed, and then, the bit '1' does not exist at the position A2, the bit '1' exists at a position A3 and therefore, the tracking point at an adjoining picture element 32 displayed by the label including the bit '1'. In the sequence of B2-B4, C2-C4 and D2-D4 respectively, the bit '1' of the label is detected and tracked. It is decided whether the information, which is not extracted as a stroke edge point, exists in the information to show respective linked black base parts. When the information, which is not extracted as the stroke edge point, exists, the respective linked black parts are not extracted by the stroke, and therefore, they are extracted as a black base lump.
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