发明名称 |
Technique for film grain simulation using a database of film grain patterns |
摘要 |
Individual pixels in an image block undergo blending with film grain from a film grain block randomly selected from among a pool of previously established film grain blocks in accordance with a luma characteristic of the image block. Prior to blending, the selected film grain block undergoes deblocking by a deblocking filter ( 28 ). Following blending, a clipper clips the individual pixels prior to display. The pool of film grain blocks is created by scaling a set of film grain patterns in accordance with at least one parameter of a film grain information message that accompanies the image block. |
申请公布号 |
ZA200604413(B) |
申请公布日期 |
2007.10.31 |
申请号 |
ZA20060004413 |
申请日期 |
2004.12.01 |
申请人 |
THOMSON LICENSING |
发明人 |
COOPER, JEFFREY ALLEN;BOYCE, JILL MACDONALD;TOURAPIS, ALEXANDROS;GOMILA, CRISTINA;LLACH, JOAN;YIN, PENG |
分类号 |
G06T5/00;H04N;H04N5/262;H04N7/26 |
主分类号 |
G06T5/00 |
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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