发明名称 |
TONE DEPENDENT GREEN-NOISE ERROR DIFFUSION METHOD AND PRINTING DEVICE THEREOF |
摘要 |
A tone dependent green-noise error diffusion method includes setting a first threshold and a second threshold, and determining a two-level value of a color level of an input image according to the first threshold and the second threshold; subtracting the two-level value from the color level value to generate an error value; performing an error diffusion on the error value to generate an error diffusion accumulation value; adjusting the color level according to the error diffusion accumulation value; performing a hysteresis filtering on the two-level value to generate an output dependent feedback value; and adjusting the color level according to the output dependent feedback value.
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申请公布号 |
US2010245927(A1) |
申请公布日期 |
2010.09.30 |
申请号 |
US20090414635 |
申请日期 |
2009.03.30 |
申请人 |
WONG WEN-CHIAN;CHEN CHEN-CHUNG |
发明人 |
WONG WEN-CHIAN;CHEN CHEN-CHUNG |
分类号 |
H04N1/409 |
主分类号 |
H04N1/409 |
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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