A Suite of tools for adding an S-shaped gamma curve to images, with full control over Black and White curve, and whether the curve affects the luma only, the chroma only, or the full RGB image.
Each curve has three controls, for highlight, shadows, and a curve balance control for mid-point. Increasing either the highlight or shadow controls increases the amount of curvature at the top or bottom of the curve. The RGB and YCbCr tools can be used in conjunction with these gamma nodes to adjust the chroma of an image.
Use the RGB and YCbCr Tools to adjust the chroma of an image to produce a nice saturation effect
G S Curve
Adjusts the image equally across R, G and B.
0 to 2
Increasing the Highlight value will increase the curvature at the brightest part of the curve, brightening highlights only.
0 to 1
Adjusts the brightness of the midtones of the image.
0 to 2
Increasing the Shadow value will increase the curvature at the darkest part of the curve, darkening shadows only.