User guide

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Control (UI) Default Value Function
channel A The channel from the out_mask input to use as a mask:
R - use the red channel as the mask.
G - use the green channel as the mask.
B - use the blue channel as the mask.
A - use the alpha channel as the mask.
By default, the inversion is limited to the non-black areas of the
mask.
invert disabled Inverts the use of the mask channel so that the inversion is
limited to the non-white areas of the mask.
fringe disabled When enabled, the mask is modified so that by default the
inversion is limited to the fringe (semi-transparent areas).
mode Additive Sets the invert calculation mode:
Additive
Multiplicative
ImageLevels
This node controls the input, gamma, and output levels of the input image.
Control (UI) Default Value Function
common
process rgba The channels to which you want to apply the levels adjustment.
mix 1 Dissolves between the original image at 0 and the full levels
adjustment at 1.
common > mask
4 NODES I-K | IMAGELEVELS