发明名称 |
Method and system for improved copy quality by generating contone value based on pixel pattern and image context type around pixel of interest |
摘要 |
A method and system reconstructs a contone image from a binary image by first tagging pixels to identify one of a multiplicity of image content types. The tag information and the pattern of bits surrounding the pixel to be converted to a contone value are used to reconstruct a contone image from a binary image. The pattern of bits in the neighborhood is used to generate a unique identifier. The unique identifier is used as the address for a lookup table with the contone value to be used wherein each lookup table corresponds to an image context type.
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申请公布号 |
US8023150(B2) |
申请公布日期 |
2011.09.20 |
申请号 |
US20100719233 |
申请日期 |
2010.03.08 |
申请人 |
XEROX CORPORATION |
发明人 |
NAGARAJAN RAMESH;TSE FRANCIS KAPO;LEE CHIA-HAO;CASSIDY JOHN CHRISTOPHER;WU JOHN W. |
分类号 |
H04N1/405;H04N1/407 |
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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