发明名称 |
Image processing apparatus |
摘要 |
Regarding a color difference between a color of an original image on a pixel other than a connection pixel set in a rectangular area that is an inside area of a rectangle circumscribed to the connection pixel set and a color of the original image on a pixel in the connection pixel set, the binary image generating unit (4) (a) identifies whether the connection pixel set is a character or non character by comparing a value of an index that indicates unevenness of the color differences with a color difference threshold value, (b) identifies whether a size of the rectangular area is small or large on the basis of a threshold value, and (c) sets the color difference threshold value as a value if the size of the rectangular area is small and as another different value if the size of the rectangular area is large. |
申请公布号 |
EP2735998(A1) |
申请公布日期 |
2014.05.28 |
申请号 |
EP20130005465 |
申请日期 |
2013.11.21 |
申请人 |
KYOCERA DOCUMENT SOLUTIONS INC. |
发明人 |
MUTSUO, TOSHIAKI;BABA, MASAKI |
分类号 |
G06K9/34;G06K9/38 |
主分类号 |
G06K9/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|