发明授权
US06577320B1 Method and apparatus for processing multiple types of pixel component representations including processes of premultiplication, postmultiplication, and colorkeying/chromakeying
有权
用于处理多种类型的像素分量表示的方法和装置,包括预乘法,后乘法和colorkeying / chromakeying的过程
- 专利标题: Method and apparatus for processing multiple types of pixel component representations including processes of premultiplication, postmultiplication, and colorkeying/chromakeying
- 专利标题(中): 用于处理多种类型的像素分量表示的方法和装置,包括预乘法,后乘法和colorkeying / chromakeying的过程
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申请号: US09273995申请日: 1999-03-22
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公开(公告)号: US06577320B1公开(公告)日: 2003-06-10
- 发明人: David B. Kirk
- 申请人: David B. Kirk
- 主分类号: G09G500
- IPC分类号: G09G500
摘要:
A method is provided for processing multiple types of pixel component representations. The method first includes identifying a plurality of texels in a texture pattern grid that correspond to a pixel. Thereafter, information components of the pixel, i.e. R, G, B, and &agr; are multiplied if the information components of the pixel are in a postmultiplied representation. Further, a colorkeyed replacement operation is carried out if the information components of the pixel are in a colorkeyed representation and at least one of the texels substantially matches a colorkey. Next, a position is interpolated on the texture pattern grid between the texels that corresponds to the pixel. Finally, the information components of the pixel are filtered.
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