发明名称 |
Image compression method with variable quantization parameter |
摘要 |
An image compression method s used for processing a plurality of pixels of an image. The image compression method includes the steps of receiving N successive pixels; obtaining N pixel differences and N map differences corresponding to the N pixels according to values of the N pixels through differential pulse code modulation; calculating to obtain a quantization reference value corresponding to the N pixels according to the N pixel differences; obtaining a quantization parameter corresponding to the N pixels according to the quantization reference value; and encoding the N map differences according to the quantization parameter.
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申请公布号 |
US8428381(B2) |
申请公布日期 |
2013.04.23 |
申请号 |
US20100793835 |
申请日期 |
2010.06.04 |
申请人 |
CHAN CHEN-HUNG;CHOU HONG-LONG;ALTEK CORPORATION |
发明人 |
CHAN CHEN-HUNG;CHOU HONG-LONG |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
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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