发明名称 |
IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, AND STORAGE MEDIUM |
摘要 |
<p>An image processing method includes converting multilevel data of an image into a dot pattern using a multilevel error diffusion process. The conversion includes determining a pixel corresponding to an abnormal nozzle based on abnormal nozzle information provided for each of droplet sizes supported by nozzles of an image forming apparatus; preventing jetting of a droplet onto the determined pixel; distributing a quantization error of the determined pixel calculated in the multilevel error diffusion process to neighboring pixels; and if extra-large droplets with a droplet size greater than the droplet size of a full-size droplet capable of filling a pixel are to be formed in the neighboring pixels as a result of distributing the quantization error, removing one or more of the extra-large droplets or reducing the droplet size of one or more of the extra-large droplets.</p> |
申请公布号 |
EP2293943(A1) |
申请公布日期 |
2011.03.16 |
申请号 |
EP20090794391 |
申请日期 |
2009.06.30 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
HIRANO, MASANORI |
分类号 |
B41J2/01;B41J2/165;B41J2/205 |
主分类号 |
B41J2/01 |
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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