发明名称 |
Method for converting a bit map of an image to a run length or run end representation |
摘要 |
A method for converting an image from a bit map to a run end or run length representation includes the steps of: storing the image as a bit map representation; accessing for each byte in an image by a look-up table a selected routine, corresponding to such byte, from a number of routines for converting bit strings to run representations, wherein the look-up table accessed is selected in accordance with a color value of a preceding pixel binary bit; and executing the selected routine on the current byte to convert the bit string to a run representation; storing in a run representation buffer, as a count value, each run representation; repeating the above steps of accessing and executing for each byte and storing for each run of continuous color to the end of the image.
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申请公布号 |
US4646356(A) |
申请公布日期 |
1987.02.24 |
申请号 |
US19840626494 |
申请日期 |
1984.06.29 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ANDERSON, KAREN L.;MITCHELL, JOAN L.;PENNEBAKER, WILLIAM B.;GOERTZEL, GERALD |
分类号 |
G06F3/153;G06T9/00;H03M7/46;H04N1/41;H04N1/419;(IPC1-7):G06K9/36 |
主分类号 |
G06F3/153 |
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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