Color interpolation device and color interpolation method
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United States of America Patent
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May 8, 2012
Grant Date -
Mar 11, 2010
app pub date -
Sep 8, 2009
filing date -
Sep 8, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A color interpolation device may include a gradient grade calculation block calculating horizontal derivatives and vertical derivatives using composite video signals output from a current pixel and adjacent pixels and calculating a gradient grade using a linear composition of the horizontal derivatives and vertical derivatives, a horizontal/vertical YUV calculation block calculating horizontal YUV components and vertical YUV components of the current pixel from the composite video signals, and a YUV/RGB conversion circuit mixing the horizontal YUV components and the vertical YUV components based on the gradient grade and converting mixed YUV components generated as a result of the mixing to RGB components.
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