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METHOD AND APPARATUS TO TRANSFORM/INVERSE TRANSFORM AND QUANTIZE/DEQUANTIZE COLOR IMAGE, AND METHOD AND APPARATUS TO ENCODE/DECODE COLOR IMAGE USING IT
METHOD AND APPARATUS TO TRANSFORM/INVERSE TRANSFORM AND QUANTIZE/DEQUANTIZE COLOR IMAGE, AND METHOD AND APPARATUS TO ENCODE/DECODE COLOR IMAGE USING IT
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机译:变换/逆变换和量化/去量化彩色图像的方法和装置,以及使用它编码/解码彩色图像的方法和装置
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摘要
A method and an apparatus for transforming/inverse transforming and quantizing/dequantizing a color image and a method and an apparatus for encoding/decoding a color image using the method and the apparatus. The method of transforming and quantizing the color image includes: transforming a color image into a frequency domain image; differently applying a transformation for removing a redundancy of direct current components of the frequency domain image depending on whether the color image is residual transformed and a macroblock estimation mode; and quantizing the frequency domain image from which the redundancy has been removed.
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