Apparatus and method of encoding and decoding image data using color correlation
AssigneeSamsung Electronics Co., Ltd.
InventorsSang Jo Lee, Shi Hwa Lee
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Abstract
An image data encoding apparatus and method and an image data decoding apparatus and method are provided. The image data encoding apparatus may perform at least one image prediction with respect to image data, and select a prediction mode for encoding. The image data encoding apparatus may simultaneously perform both intra prediction and color prediction, and thereby may efficiently perform encoding.
Claims21
An image data encoding apparatus, comprising:
- an image prediction unit to perform at least one image prediction with respect to image data, and to select a prediction mode based on a result of the image prediction;
- and
- an encoding unit, controlled by a processor, to encode residual data and the prediction mode and to generate a bitstream, the residual data being the result of the image prediction.
An image data decoding apparatus, comprising:
- a pre-decoding unit to extract residual data of encoded image data by performing pre-decoding with respect to the image data, and to select a prediction mode;
- and
- a prediction decoding unit, controlled by a processor, to perform prediction decoding based on the selected prediction mode and to determine original data of the image data from the residual data.
An image data encoding method, comprising:
- performing at least one image prediction with respect to image data, and selecting a prediction mode based on a result of the image prediction;
- and
- encoding, by way of a processor, residual data and the prediction mode and generating a bitstream, the residual data being the result of the image prediction.
An image data decoding method, comprising:
- extracting residual data of encoded image data by performing pre-decoding with respect to the image data, and selecting a prediction mode;
- and
- performing, by way of a processor, prediction decoding based on the selected prediction mode and determining original data of the image data from the residual data.
A computer-readable recording medium encoded with instructions causing at least one processing device to perform an image data encoding method comprising:
- performing at least one image prediction with respect to image data, and selecting a prediction mode based on a result of the image prediction;
- and
- encoding residual data and the prediction mode and generating a bitstream, the residual data being the result of the image prediction.
Dependencies are inferred from the claim text.