Left Toolbar > Adjust Nodes > Channel Mixer
Channel Mixer allows you to adjust the value of every RGB channel and combine them. Set the Monochromatic option if gray-scale output is desired. Blend it with the original image to add more output options.
Channel Red: Values Red: 0.91, Green: -0.119, Blue: 0.44, Constant: -0.137. Luminosity: Ignore.
Monochrome Values Red:1, Green: -0.155, Blue: 0.41, Constant: -0.046. Luminosity: Ignore.
On the left toolbar choose Adjust Nodes > Channel Mixer
Drag the Channel Mixer icon into the Node Graph.
Connect the output of an image node into the Img input in the Channel Mixer node.
Select Channel and modify the different values. Set the blend mode and opacity to modify the output image.
Img The image to be adjusted. Mask image.
Img The adjusted image.
The adjusted image is blended with the input image to provide additional adjustment options.
Blend Mode The blending mode: Normal, Multiply, Divide,Screen, Overlay, Dodge, Burn, Hard Light, Soft Light, Grain Extract.
Opacity The opacity of the original image in the blending process.
Monochrome Check if gray-scale RGB effect is desired.
Channel Select channel to adjust: Red, Green, Blue. Reset specific value or Reset all channel values.
Red Adjust Red channel value for the selected channel. Range: -2 to 2.
Green Adjust Green channel value for the selected channel. Range: -2 to 2.
Blue Adjust Blue channel value for the selected channel. Range: -2 to 2.
Constant set a constant value to modify the selected channel output. Range: -2 to 2.
Luminosity Adjust Blue channel value for the selected channel. Range: -2 to 2.