| 摘要 |
PROBLEM TO BE SOLVED: To prevent increase of costs required for image region separation processing to cope with increase in a resolution of image data. SOLUTION: An inner region addition section 31 determines a total sum Ihigh of edge signals of pixels in an inner region of a dot determination pattern. An outer region addition section 32 determines a total sum Ohigh of edge signals of pixels in an outer region of the dot determination pattern. A pattern determination section 33 determines whether or not conditions of Ihigh≥thI*4 and Ihigh-Ohigh≥thD*4 are established for thresholds thI, thD. COPYRIGHT: (C)2007,JPO&INPIT |
