The Color Correction node adjusts image map attributes such as Brightness, Hue, Saturation, Gamma, and Contrast. In figure 1, a Turbulence and RGB Color node are added together and the result's contrast is increased using the Color Correction node.


Color Correction

Figure 1: The Color Correction node and it's associated parameters


Color Correction Parameters

Input - The texture input to be color corrected.

Brightness - Adjusts the overall lightness or darkness of the input prioritizing midtones with a gentle, equal adjustment across the value ranges.

Invert - Inverts the colors from the input texture.

Hue - Shifts the color (red, blue, green, etc.). A value of 1 will shift the hue 180 degrees on the color wheel. 

Saturation - Adjusts the intensity or strength of the texture's hues, scaling them from a vivid hue to muted gray.

Gamma - Adjusts how bright or dark the middle shades look without affecting pure white or pure black. 

Contrast - Adjusts the difference in brightness or color separation between the light and dark areas of the input texture. 

Gain - Adjusts the highlights, whites, and brightest areas of the input texture.

Exposure - Similar to Brightness but prioritizes highlights and scales values linearly much like a camera apeerture.

Mask - Blends between the input (if set to 0) and the color corrected result (if set to 1).