发明名称 |
Data processing method |
摘要 |
The present invention relates to a data processing method, which data are included in an incoming digital image. This method comprises a calculation step (ACT) of a spatial activity value of a current pixel based on values (Y) of said current pixel and pixels adjacent thereto, a determination step (NND) of a non-natural uniform area (NN) if the spatial activity value of various consecutive pixels is lower than a first predetermined threshold value. The invention also includes a gradient filter step (GF) of values (Y) of the pixels adapted to detect (THR 1 ) strong edges (SE) inside the image and a detection step (RD) of a ringing artifact. The invention finally comprises a filter step (FIL) of values (Y) of the pixels comprised in a filtering area which is located between a non-natural uniform area (NN) and a strong edge (SE) which are close together and where at least a ringing artifact has been detected.
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申请公布号 |
US6920252(B2) |
申请公布日期 |
2005.07.19 |
申请号 |
US20010024768 |
申请日期 |
2001.12.19 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
ROUVELLOU LAURENT JEAN MARIE |
分类号 |
G06T5/20;G06T7/60;G06T9/00;H04N5/14;H04N5/21;H04N7/24;H04N7/26;H04N7/30;(IPC1-7):G06K9/40 |
主分类号 |
G06T5/20 |
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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