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US 9,542,731 B2Granted
Apparatus for increasing sharpness
AssigneeLG Innotek Co., Ltd.
InventorSang Yong Lee
Life of this patent
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Abstract
An apparatus for increasing sharpness is provided. The apparatus according to an exemplary embodiment of the present disclosure can improve sharpness of an image by applying different sharpness gains to a center of the image and to a periphery of the image.
Claims9
An apparatus for increasing sharpness, the apparatus comprising:
- a sensor unit configured to obtain an image;
- a detection unit configured to detect an edge component of the image;
- and
- a synthesize unit configured to synthesize sharpness gains differently in response to an image position of an edge component detected by the detection unit,
- wherein the synthesize unit is configured to synthesize a smallest sharpness gain toward an edge component in a center of the image and synthesize a larger sharpness gain toward an edge component in a periphery of the image to restrict generation of noise and to restrict an excessive increase in sharpness toward the center of the image.
2 more elements
An apparatus for increasing sharpness, the apparatus comprising:
- a sensor unit configured to obtain an image;
- a detection unit configured to detect an edge component of the image;
- a filter unit configured to divide the edge component to a plurality of frequency bands;
- a plurality of first synthesize units configured to synthesize respectively different sharpness gains to the edge components extracted to the plurality of frequency bands;
- and
- a second synthesize unit configured to synthesize the edge components outputted by the plurality of first synthesize units,
- wherein the second synthesize unit is configured to synthesize each separate sharpness gain according to a relevant frequency band to reduce generation of noise and increase sharpness of each frequency band.
4 more elements
Dependencies are inferred from the claim text.