发明授权
US6154568A Image processing apparatus for processing a bi-level image and method
therefor
失效
用于处理双电平图像的图像处理装置及其方法
- 专利标题: Image processing apparatus for processing a bi-level image and method therefor
- 专利标题(中): 用于处理双电平图像的图像处理装置及其方法
-
申请号: US867394申请日: 1997-06-02
-
公开(公告)号: US6154568A公开(公告)日: 2000-11-28
- 发明人: Liming Chen , Osamu Asada
- 申请人: Liming Chen , Osamu Asada
- 申请人地址: JPX Tokyo
- 专利权人: Oki Data Corporation
- 当前专利权人: Oki Data Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX8-169862 19960628
- 主分类号: H04N1/387
- IPC分类号: H04N1/387 ; G06T3/40 ; G06T5/00 ; H04N1/40 ; H04N1/405 ; H04N1/41 ; H04N1/411 ; G06K9/32
摘要:
A bi-level image is pre-processed by dividing the image into rectangular blocks, and rearranging the dots in each rectangular block into a pattern determined by the density of black dots in the block. The resulting rearranged image is suitable for further processing such as resolution conversion or compressive encoding.
公开/授权文献
- US5237886A Split-worm gear set 公开/授权日:1993-08-24
信息查询