Alters an image’s color characteristics.
Saturation— The intensity of colors. At -1, the image is grayscale. As saturation increases, the colors become more intense.
Hue Shift— The number of degrees to shift the colors around the red-yellow-green-cyan-blue-magenta color circle. At 60°, red becomes yellow, yellow becomes green, and so on. At 120°, red becomes green, yellow becomes cyan, and so on.
Contrast— The difference between light and dark colors in the image. At -1, the image is all the same color. As contrast increases, the dark colors become darker and the light colors become lighter.
Brightness— The darkness or lightness of colors. At -1, the image is black. At 1, the image is white.
Exposure— The darkness or lightness of colors, especially affecting the lightest colors (highlights). At -1, the image is black. At 1, the image is white.
Gamma— The darkness or lightness of colors, especially affecting the medium-brightness colors (midtones). At 1, the image is unchanged. At 0, the image is white. As gamma increases, the image becomes darker.
Keywords: brightness, chroma, contrast, desaturate, exposure, filter, gamma, grayscale, greyscale, saturation, tint, tone