| 摘要 |
A closed-loop area detecting method includes the steps of: reading a dot matrix from bi-level image data, the dot matrix comprising a target dot and two or more contiguous dots contiguous to the target dot; performing a first pattern matching to detect whether a dot matrix coincides with one of a plurality of first patterns so as to set a first flag for each dot; performing a second pattern matching to detect whether a dot matrix coincides with one of a plurality of second patterns so as to set a second flag for each dot; repeating the above mentioned first and second flag setting so that the second flags for all the dots of the image data are set; and detecting a dot of the image data as lying in the inside of a closed-loop area when the second flag is set to a first value, and detecting a dot of the image data as lying on the outside of the closed-loop area when the second flag is set to a second value. An image processing apparatus utilizing the closed-loop area detecting method is also provided.
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