IMAGE ENCODING AND DECODING METHODS FOR PRESERVING FILM GRAIN NOISE, AND IMAGE ENCODING AND DECODING APPARATUSES FOR PRESERVING FILM GRAIN NOISE
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United States of America Patent
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app pub date -
Jan 6, 2015
filing date -
Jan 6, 2014
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Abstract
An image encoding method and an image decoding method, and an image encoder and an image decoder, are provided. The image encoding method includes detecting a static region and a motion region of an image, calculating an encoding error in the image, calculating a film grain noise (FGN) error in the motion region, and encoding the image to reduce an encoding error in the image other than the FGN error.
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