Image area identification device
专利汇可以提供Image area identification device专利检索，专利查询，专利分析的服务。并且PURPOSE: To surely identify a binary area and a half tone area by joining together a background area and an area whose edge is detected and setting its area as a character image area candidate, and setting other area as a half tone area candidate.
CONSTITUTION: As for an input image, an edge area is extracted by an edge detecting part 1, and a background area is extracted from a background detecting part 2. Two extracting signals become a character area candidate synthesized by a synthesizing part 7 by an OR processing, and other area becomes a half tone area candidate, and a signal for showing them is inputted to an area deciding part 6. In the area deciding part 4, the number of picture element decided to be a character area candidate in M×N picture elements for the area deciding part is counted, and when a counted value is larger than threshold determined in advance, it is decided to be a character area, and when the counted value is smaller than its threshold, it is decided to be a half tone area. In such a manner, the background area is identified as the character area, and the binary area and the half tone area can be surely identified.
COPYRIGHT: (C)1990,JPO&Japio，下面是Image area identification device专利的具体信息内容。
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