发明名称 |
Multi-dimensional error diffusion technique |
摘要 |
A circuit for increasing the speed of conversion of image pixels from one number of bits to another by processing a plurality of pixels in parallel. The conversion of each pixel typically results in a new value and an error term which is divided up among adjacent pixels. By using a plurality of separate conversion circuits, one for each line, and by processing the xth pixel on one line in parallel with the x-2 pixel on the next line, the plurality of pixels can be processed in parallel. All circuits are identical except that the first circuit must get the error term of the line above it from memory, and the last of the parallel circuits must store in memory the error term for the next plurality of lines.
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申请公布号 |
US5271070(A) |
申请公布日期 |
1993.12.14 |
申请号 |
US19920972403 |
申请日期 |
1992.11.06 |
申请人 |
XEROX CORPORATION |
发明人 |
TRUONG, THANH D.;KADAKIA, VINOD |
分类号 |
H04N1/405;(IPC1-7):G06K9/36 |
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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