发明名称 |
Halftone processing apparatus and method, printing apparatus |
摘要 |
A halftone processing apparatus that is incorporated in a printing apparatus capable of representing the gradation of one pixel by using a plurality of dots or that is incorporated in an information processing apparatus for generating print data to be supplied to the printing apparatus is provided. The halftoning processing apparatus includes a defect position storage section storing position information for specifying an area in which a print defect is confirmed; an error diffusion processing section quantizing an input density signal of multi-valued gradation corresponding to each pixel by using a threshold value and adding the resultant quantization error to front pixels in a diffused manner; and a quantization input switching section controlling a quantization input of an input density signal of a pixel corresponding to position information to zero when the input density signal is quantized by the error diffusion processing section.
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申请公布号 |
EP1648154(A2) |
申请公布日期 |
2006.04.19 |
申请号 |
EP20050022242 |
申请日期 |
2005.10.12 |
申请人 |
SONY CORPORATION |
发明人 |
TAKAKURA, MASAYUKI;KUWAHARA, SOICHI;ISHIHARA, MITSUGU |
分类号 |
H04N1/405;H04N1/40 |
主分类号 |
H04N1/405 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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