发明名称 |
Grayscale and binary image data compression |
摘要 |
Arrangements and procedures for compressing grayscale, binary and bi-level image data are disclosed. With respect to compressing binary and bi-level image data, individual byte image data values are retained that are different from a same row byte that is n-bytes back. For each retained byte image data value, individual byte image data values are encoded for bytes in a current byte row with replacement data strings. The replacement data strings include a replacement positioning code and a replacement count code for replicating retained byte image data values for subsequent data decompression as a group of substantially identical byte values.
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申请公布号 |
US7373008(B2) |
申请公布日期 |
2008.05.13 |
申请号 |
US20020112148 |
申请日期 |
2002.03.28 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
CLOUTHIER SCOTT;EZELL ANTHONY |
分类号 |
G06K9/36;G06K9/46;G06T9/00;H04N1/41 |
主分类号 |
G06K9/36 |
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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