Apple Shake 4 - Manual (Page 885)

Chapter 28 Filters 885
steps
The number of steps. The intensity of the control image is divided up X amount of
zones, with X equal to steps.
stepBlend
Controls the blending between the amount of regions (see below). If you set this
parameter to 0, each step has a constant blur value. If the setting is 1, there is a
continuous blend between the different regions.
controlChannel
The channel of the controlling image to use to control the amount of blur.
channels
The channels of the input image to sharpen.
invert
Inverts the controlChannel.
Median
The Median node applies a 3 x 3 median filter. It is good for the removal of individual
dots and noise.
Parameters
This node displays the following controls in the Parameters tab:
channels
Lets you set which channels the Median filter should affect. You can choose one or all
of the red, green, blue, or alpha channels. The default is “rgba.”
threshold
The change is allowed if the change is above or below this threshold value.
thresholdType
Defines whether the result is below (0) or above (1) the threshold to allow the change.
PercentBlur
The PercentBlur node blurs the image according to a percentage factor, rather than a
pixel size. Therefore, 100 percent blurs with the entire image in the blur calculation.
Parameters
This node displays the following controls in the Parameters tab:
xPercent, yPercent
Percent of the image taken into consideration for the blur. 100 = the entire image, or a
flat color. Default is 0.