Chroma subsampling
- 色度抽样：在数位图像处理领域中，色度抽样是指在表示图像时使用较亮度信息低的分辨率来表示色彩（色度）信息。当对模拟分量视频或者YUV讯号进行数字抽样时，一般会用到色度抽样。
Chroma subsampling
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abstract:
Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system's lower acuity for color differences than for luminance.
以上来源于:
WordNet