YUV，是一种颜色编码方法。

YUV是编译true-color颜色空间（color space）的种类，Y'UV, YUV, YCbCr，YPbPr等专有名词都可以称为YUV，彼此有重叠。「Y」表示明亮度（Luminance、Luma），「U」和「V」则是色度、浓度（Chrominance、Chroma），Y'UV, YUV, YCbCr, YPbPr常常有些混用的情况，其中YUV和Y'UV通常用来描述模拟信号，而相反的YCbCr与YPbPr则是用来描述数字的影像信号，例如在一些压缩格式内MPEG、JPEG中，但在现今，YUV通常已经在电脑系统上广泛使用。YUV Formats分成两个格式：

YUV is a color space typically used as part of a color image pipeline. It encodes a color image or video taking human pe****tion into account, allowing reduced bandwidth for chrominance components, thereby typically enabling transmission errors or compression artifacts to be more efficiently masked by the human pe****tion than using a "direct" RGB-representation. Other color spaces have similar properties, and the main reason to implement or investigate properties of Y'UV would be for interfacing with analog or digital television or photographic equipment that conforms to certain Y'UV standards.