Color interpolation device and color interpolation method
AssigneeSamsung Electronics Co., Ltd.
InventorTimofei Uvarov
Life of this patent
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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.
Claims32
A color interpolation device comprising:
- 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 to RGB components.
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A color interpolation device comprising:
- a horizontal/vertical YUV calculation block calculating horizontal YUV components and vertical YUV components of a current pixel from composite video signals;
- and
- a YUV/RGB conversion circuit mixing the horizontal YUV components and the vertical YUV components based on a gradient grade and converting the mixed YUV components to RGB components.
A color interpolation device comprising:
- a fully de-saturated UV calculation block comparing a value of each horizontal UV component of horizontal YUV components and a value of each vertical UV component of vertical YUV components and calculating fully de-saturated UV components;
- a YUV/RGB conversion block converting a mixed Y component and controlled de-saturated UV components calculated by mixing UV components and fully de-saturated UV components to RGB components.
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Dependencies are inferred from the claim text.