发明名称 |
Image forming apparatus and method for correcting density level of pixel data corresponding to each dot in a dot image |
摘要 |
An image forming apparatus corrects pixel data subjected to various dither processes by using correction table information. The image forming apparatus forms a dot image having density gradation represented by a plurality of dots. Conditions of dots surrounding each dot in the dot image is detected. A correction of pixel data corresponding to each dot is performed in accordance with a difference in a density level of the pixel data between each dot and the dots surrounding each dot.
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申请公布号 |
US6486973(B1) |
申请公布日期 |
2002.11.26 |
申请号 |
US19980184278 |
申请日期 |
1998.11.02 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
SASAKI EIICHI |
分类号 |
B41J2/44;B41J2/52;H04N1/405;H04N1/407;(IPC1-7):G06K9/48 |
主分类号 |
B41J2/44 |
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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