Erode (fast)
Also known as the Dilate node, Erode (fast) controls the relative amount of dark (negative size values) and light (positive size values) pixels in the input. This can be used to grow or shrink mattes, for example, an alpha matteās pixels can be given a positive size value to cover more area.
Erode (fast) is similar to Erode (filter), but computationally less expensive.
Inputs and Controls
Connection Type |
Connection Name |
Function |
Input |
unnamed |
The image or matte to erode. |
Control (UI) |
Knob (Scripting) |
Default Value |
Function |
Dilate Tab |
|||
channels |
channels |
all |
The effect is only applied to these channels. If you set this to something other than all or none, you can use the checkboxes on the right to select individual channels. |
size |
size |
0 |
Adjusts the size of pixels within the channel defined by the channels control. Positive values increase the light pixels and vice versa. |
mask |
N/A |
disabled |
Enables the associated mask channel to the right. Disabling this checkbox is the same as setting the channel to none. |
maskChannelInput |
none |
The channel to use as a mask. By default, the effect is limited to the non-black areas of this channel. |
|
inject |
inject |
disabled |
Copies the mask input to the predefined mask.a channel. Injecting the mask allows you to use the same mask further downstream. |
invert |
invert_mask |
disabled |
Inverts the use of the mask channel, so that the effect is limited to the non-white areas of the mask. |
fringe |
fringe |
disabled |
When enabled, only apply the effect to the edge of the mask. When disabled, the effect is applied to the entire mask. |
mix |
mix |
1 |
Dissolves between the original image at 0 and the full effect at 1. |