发明申请
US20050099455A1 Methods and apparatus for converting full color images to two-color images for printing at a two-color printer
有权
将全色图像转换为双色图像以在双色打印机上打印的方法和装置
- 专利标题: Methods and apparatus for converting full color images to two-color images for printing at a two-color printer
- 专利标题(中): 将全色图像转换为双色图像以在双色打印机上打印的方法和装置
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申请号: US10871992申请日: 2004-06-18
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公开(公告)号: US20050099455A1公开(公告)日: 2005-05-12
- 发明人: Stephen Payne
- 申请人: Stephen Payne
- 申请人地址: US CT Wallingford
- 专利权人: TransAct Technologies Incorporated
- 当前专利权人: TransAct Technologies Incorporated
- 当前专利权人地址: US CT Wallingford
- 主分类号: B41J2/205
- IPC分类号: B41J2/205 ; B41J2/21 ; B41J11/50 ; B41J17/36 ; B41J29/18 ; B41J29/48
摘要:
Methods and apparatus are provided for converting a full color image to a two-color image for printing at a two-color printer capable of printing black pixels and alternate color pixels. Black pixels and alternate color pixels of the full color image will be printed as corresponding black and alternate color pixels in the two-color image. Printing in pixel areas of the two-color image which correspond to white pixels of the full color image will be inhibited, such that the white pixels of the full color image appear as corresponding background colored pixel areas of the substrate in the two-color image. A dithering algorithm is used for converting other color pixels of the full color image into the two-color image by utilizing either a combination of corresponding background colored pixel areas of the substrate and printed alternate color pixels or a combination of corresponding printed black and alternate color pixels.