YUV422

YUV422 is a digital video format that represents color information using the Y, U, and V components. Y represents the luminance (brightness) of the image, while U and V represent the chrominance (color) information. The 422 in YUV422 refers to the subsampling scheme used for the chrominance components. This means that for every four luminance samples, there are two U samples and two V samples. Specifically, the U and V samples are sampled horizontally at half the rate of the luminance samples. This is a form of chroma subsampling where color information is compressed by discarding some of the color data, as the human eye is less sensitive to color detail than to brightness detail. YUV422 is often used in professional video contexts and certain digital video interfaces. It provides a good balance between image quality and data size compared to formats with no chroma subsampling (like YUV444) and formats with more aggressive subsampling (like YUV420). This format is commonly found in broadcast television and in some high-definition video applications.