Adjust color balance. Adjusts the value of each RGB color component separately.
op_colorbalance= * redAdj *, * greenAdj *, * blueAdj *
Red component adjustment (-100…+100 int).
Green component adjustment (-100…+100 int).
Blue component adjustment (-100…+100 int).
Gray and CMYK input image data is converted to RGB using naive conversion which is not accurate when color management is enabled.
Layer command. Applies to the current layer or to the composite image if layer=comp . Ignored by effect layers. CMYK images and layers are converted to RGB before the operation is applied.
op_colorbalance=0,0,0 for no change in colors.
Push the color balance towards red:
… &op_colorBalance=100,0,0& …