发明名称 |
Method and apparatus for near lossless digital image compression |
摘要 |
A method and apparatus for encoding a digital image is disclosed. A difference is calculated between a first sample from a current scan line and a corresponding second sample from a previous scan line. A quantization table level is selected from a quantization table that includes at least one level, and information identifying the selected level is placed into an information stream. A quantizer is selected from the quantization table level based on the calculated difference and information corresponding to the selected quantizer is place into the information stream.
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申请公布号 |
US2001041016(A1) |
申请公布日期 |
2001.11.15 |
申请号 |
US20010904829 |
申请日期 |
2001.07.12 |
申请人 |
GOLDSTEIN JUDITH A.;FREYTAG LAWRENCE K.;KEITH MICHAEL |
发明人 |
GOLDSTEIN JUDITH A.;FREYTAG LAWRENCE K.;KEITH MICHAEL |
分类号 |
G06T9/00;(IPC1-7):G06K9/36 |
主分类号 |
G06T9/00 |
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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