Apply hue-saturation-intensity adjustments to input video stream.

This filter operates in RGB colorspace.

This filter accepts the following options:

hue

Set the hue shift in degrees to apply. Default is 0. Allowed range is from -180 to 180.

saturation

Set the saturation shift. Default is 0. Allowed range is from -1 to 1.

intensity

Set the intensity shift. Default is 0. Allowed range is from -1 to 1.

colors

Set which primary and complementary colors are going to be adjusted. This options is set by providing one or multiple values. This can select multiple colors at once. By default all colors are selected.

r

Adjust reds.

y

Adjust yellows.

g

Adjust greens.

c

Adjust cyans.

b

Adjust blues.

m

Adjust magentas.

a

Adjust all colors.

strength

Set strength of filtering. Allowed range is from 0 to 100. Default value is 1.

rw, gw, bw

Set weight for each RGB component. Allowed range is from 0 to 1. By default is set to 0.333, 0.334, 0.333. Those options are used in saturation and lightess processing.

lightness

Set preserving lightness, by default is disabled. Adjusting hues can change lightness from original RGB triplet, with this option enabled lightness is kept at same value.