The Color Correction node adjusts image map attributes such as Brightness, Hue, Saturation, GammaThe function or attribute used to code or decode luminance for common displays. The computer graphics industry has set a standard gamma setting of 2.2 making it the most common default for 3D modelling and rendering applications., and Contrast (Figure 1).
Figure 1: The Color Correction node alters the RGB Color node's Hue and Brightness values before connecting to the DiffuseAmount of diffusion, or the reflection of light photons at different angles from an uneven or granular surface. Used for dull, non-reflecting materials or mesh emitters. pin on a Diffuse materialUsed for dull, non-reflecting materials or mesh emitters.