YCbCr2RGB

Color space conversion is the process of transforming image data from one representation to another—specifically between formats optimized for different applications. The RGB format, common in computer graphics, uses red, green, and blue channels but is less efficient in storage and bandwidth, as all three channels must be handled equally. In contrast, YCbCr separates the luminance (Y) from the chrominance (Cb and Cr) components, aligning with how humans perceive visual information—being more sensitive to brightness than to color detail. This allows efficient compression and sampling techniques (e.g., chroma subsampling like 4:2:2 or 4:4:4), making YCbCr the preferred format in video standards. Converting between these formats enables systems to use the best representation for storage, processing, or display.