发明名称 PROCESSING OF IMAGE
摘要 PURPOSE:To prevent a line on a border part between images from occurrence, by a method wherein after image memory over a plurality of divided mutual adjacent scanning regions are stored in memory, the image data stored in the memory are processed by an error diffusion method. CONSTITUTION:When a form of a diffusion matrix is to be considered, data of one scan content, for instance, data of a region (a) are stored in memory, and signal processing direction conversion of main scanning and subsidiary scanning is performed. That is, after a signal is converted by using the memory, binary processing of error diffusion or the like is performed, and reverse signal conversion is performed by using the memory again. By performing such a process as abovementioned, image data partially read can be treated as a sheet of continuous images, and a problem of an 'line' having been generated on the boundary between the regions abovementioned can be solved.
申请公布号 JPS63309457(A) 申请公布日期 1988.12.16
申请号 JP19870146313 申请日期 1987.06.11
申请人 CANON INC 发明人 NAGASHIMA SUNAO;ICHIKAWA HIROYUKI;KATAYAMA AKIHIRO
分类号 B41J2/44;G06F3/12;G06K15/12;G06T5/00;H04N1/04;H04N1/191;H04N1/405 主分类号 B41J2/44
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