RGB to CMYK conversion is the process of transforming color representations from the RGB (Red, Green, Blue) color model to the CMYK (Cyan, Magenta, Yellow, Key/Black) color model. This conversion is essential for print design, as most digital displays use RGB, while most printing processes use CMYK.
The RGB color model represents colors using three components:
The CMYK color model represents colors using four components:
The conversion from RGB to CMYK involves these steps:
1. Normalize RGB values:
\[ R' = R / 255, G' = G / 255, B' = B / 255 \]
2. Calculate Key (Black):
\[ K = 1 - \max(R', G', B') \]
3. Calculate Cyan, Magenta, and Yellow:
\[ C = (1 - R' - K) / (1 - K) \]
\[ M = (1 - G' - K) / (1 - K) \]
\[ Y = (1 - B' - K) / (1 - K) \]
4. Convert to percentages:
\[ C = C \times 100\%, M = M \times 100\%, Y = Y \times 100\%, K = K \times 100\% \]
Let's convert a vibrant blue color from RGB to CMYK:
This diagram shows the vibrant blue color represented in both RGB and CMYK formats. While they appear identical on screen, the CMYK version is optimized for print reproduction.
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