发明名称 |
Method and data arrangement for encapsulating signed over-ranged color image data to accommodate in-range file formats |
摘要 |
A new method and data encapsulation arrangement are disclosed for over-ranging color image data. The resulting data storage format renders color image data sets encoded in the over-ranging format compatible with in-range color image systems. Thus, color images including over-ranging portions will be readable by legacy systems that handle only in-range color data.The new arrangement of the color image data storage comprises a file header segment describing contents of a color image file. The new arrangement also includes an image data segment comprising digital image data representing a set of color image elements encoded in a signed over-ranged color space. A multi-partitioned color image bitmap data segment is created.A first partition in the multi-partitioned bitmap data segment includes image data corresponding to a first color image data word portion associated with an in-range color space. A second partition in the multi-partitioned bitmap data segment includes image data corresponding to a second color image data word portion associated with an over-ranging color space. The second partition may optionally include additional precision bits that are concatenated with the lowest precision in-range color channel data of the first partition.
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申请公布号 |
US6611273(B2) |
申请公布日期 |
2003.08.26 |
申请号 |
US20010790930 |
申请日期 |
2001.02.22 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
STOKES MICHAEL D.;WONG GILMAN K. |
分类号 |
H04N1/41;H04N1/64;(IPC1-7):G09G5/02 |
主分类号 |
H04N1/41 |
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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