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Methods for improving compression of image chroma information using reduced resolution and luma biased chroma quantization parameters
Methods for improving compression of image chroma information using reduced resolution and luma biased chroma quantization parameters
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机译:使用降低的分辨率和亮度偏向色度量化参数改善图像色度信息压缩的方法
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摘要
Methods and computer programs for improving compressed image chroma information include selecting a luminance channel and two or more chroma channels, reducing the resolution of one or more of the chroma channels, applying a quantization parameter (QP) value to at leat one of the chroma channels, the chroma QP being biased with respect to the a QP value applied to the luminance channel. One chroma channel (X') may represent non-visible wavelengths.
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