Frame buffer compressor, and image processing device having the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSungho JUN, Jungyeop YANG
Life of this patent
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Abstract
An image processing device includes a multimedia Intellectual Property configured to process image data and generate source data, and a frame buffer compressor configured to compress the source data, generate compressed data, decompress the compressed data and generate output data. The frame buffer compressor configured to generate quantized data by performing quantization on the source data using a plurality of pixel position offsets corresponding to each of coordinates of a plurality of image pixels included in the source data, and a quantization coefficient, and generate the compressed data by processing the quantized data.
Claims20
An image processing device comprising:
- a multimedia Intellectual Property configured to
- process image data and
- generate source data;
- and
- a frame buffer compressor configured to
- compress the source data,
- generate compressed data,
- decompress the compressed data, and
- generate output data,
- generate quantized data by performing quantization on the source data using a plurality of pixel position offsets corresponding to each of coordinates of a plurality of image pixels included in the source data, a quantization coefficient, and a quantization offset determined as ½ of the quantization coefficient, and
- generate the compressed data by processing the quantized data.
A frame buffer compressor comprising:
- an encoder configured to compress source data and generate compressed data;
- and
- a decoder configured to decompress the compressed data and generate output data,
- the encoder is further configured to
- generate quantized data by performing quantization on the source data using pixel position offsets obtained by modulo operating each of coordinates of a plurality of image pixels included in the source data, and a quantization coefficient, and
- generate the compressed data by processing the quantized data.
A data processing method comprising:
- receiving source data from a multimedia Intellectual Property;
- calculating a first offset determined by each of coordinates of a plurality of image pixels included in the source data by a frame buffer compressor;
- determining a second offset based on a coefficient and ½ of the coefficient by the frame buffer compressor;
- and
- performing, by the frame buffer compressor, an operation of obtaining a result of subtracting the first offset from the source data and adding the second offset and dividing the obtained result by the coefficient.
Dependencies are inferred from the claim text.