User guide

158
ImageContrast
This adjusts the input image's contrast around a fixed color point.
Control (UI) Default Value Function
R enabled When enabled, affect the red channel of the image.
G enabled When enabled, affect the green channel of the image.
B enabled When enabled, affect the blue channel of the image.
A enabled When enabled, affect the alpha channel of the image.
mix 1 Dissolves between the original image at 0 and the full contrast
effect at 1.
Mask
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 contrast change is limited to the non-black areas
of the mask.
invert disabled Inverts the use of the mask channel so that the contrast change
is limited to the non-white areas of the mask.
fringe disabled When enabled, the mask is modified so that by default the
contrast change is limited to the fringe (semi-transparent areas).
• 0.0 -> 0.0
• 0.5 -> 1.0
• 1.0 -> 0.0
• out=4a*(1-a)
contrast
rbg 1 Adjusts the image contrast in the r, g, and b channels.
4 NODES I-K | IMAGECONTRAST