Television – Format conversion
Reexamination Certificate
2004-10-15
2008-10-28
Tran, Trang U (Department: 2622)
Television
Format conversion
C348S607000, C348S448000
Reexamination Certificate
active
07443448
ABSTRACT:
An apparatus to suppress artifacts in an image signal. The apparatus includes a differential value calculation unit to calculate a differential value between adjacent pixels with respect to an input image signal, a diffusion amount calculation unit to calculate an amount of diffusion between the adjacent pixels on the basis of the differential value calculated by the differential value calculation unit, and a pixel value conversion unit to convert the present pixel value of the image signal inputted on the basis of the diffusion amount between the pixels calculated by the diffusion amount calculation unit. The apparatus changes the pixel value in consideration of the differential value between the adjacent pixels, and thus it can provide a high quality image signal without losing or misrecognizing the artifacts of the image signal.
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Kwon Young-Jin
Yang Seung-joon
Samsung Electronics Co,. Ltd.
Stanzione & Kim LLP
Tran Trang U
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