Color Correction

Post production editing in SCRATCH, DaVinci Resolve with TANGENT WAVE Panel.
Color Correction or Grading is the technique of changing the colors present in an image. This could be a stark change (blue to red) or a subtle change (white balance).
Color correction is a process used in stage lighting, photography, television, cinematography, and other disciplines, which uses color gels, or filters, to alter the overall color of the light. Typically the light color is measured on a scale known as color temperature, as well as along a green–magenta axis orthogonal to the color temperature axis.