发明名称 |
COLOR INFORMATION SEPARATING METHOD FOR DOCUMENT PICTURE |
摘要 |
PURPOSE:To efficiently handle a color document picture by performing local area discrimination based on color difference information or the like in a three- primary color space and area extraction based on rough area discrimination with a group of areas as a unit. CONSTITUTION:A color document 310 is stored as three primary color pictures in memories 305-307 by a color picture input device 301. A local area color discriminating part 302 reads out three-primary color data and discriminates whether each picture element includes color information or is in a monochromatic area and stores the result in a mask picture memory 308, and a linking area extracting part 303 reads out mask pictures having values '0' and '1' from the mask picture memory 308 and labels every linking areas and stores them in a label picture memory 309. A rough area color discriminating part 304 reads out data from the label picture memory 309 and three primary color memories 305-307 and performs the rough processing and sends results to a control part 300, and classifications and colors of areas are discriminated. Thus, the color document picture is efficiently handled. |
申请公布号 |
JPS6446885(A) |
申请公布日期 |
1989.02.21 |
申请号 |
JP19870203468 |
申请日期 |
1987.08.18 |
申请人 |
AGENCY OF IND SCIENCE & TECHNOL |
发明人 |
SHIMA YOSHIHIRO;MURAKAMI TATSUYA;TONO JUNICHI;NAKANO YASUAKI;FUJISAWA HIROMICHI |
分类号 |
H04N1/40;G06T7/00;H04N1/46 |
主分类号 |
H04N1/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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