Search Tips

Search is based on keyword.

`Ex: "Procedures"`

Do not search with natural language

`Ex: "How do I write a new procedure?"`

Give Feedback Support Portal

# ImageBlur

Adds blur to an image or matte using Box, Triangle, Gaussian, Bell, BSpline, or Mitchell filter algorithms. The blur value is calculated for image pixels by examining their neighbors within the constraints of the xAmount and yAmount controls, and applying the selected algorithms.

Connection Type | Connection Name | Function
Input | input | The image sequence you want to blur.
out_mask | An optional image to use as a mask. By default, the blur effect is limited to the non-black areas of the mask.

Control (UI) | Default Value | Function
[2D node controls] | N/A | Set the controls for the stereo view. For more information, refer to the Common 2D Nodes Widget Type in Common Parameter Widgets.
ImageBlur parameters continued
xAmount | 0 | Sets the horizontal radius (in pixels) within which pixels are compared to calculate the blur. Higher values widen the compare area, producing more blur.
yAmount | xAmount | Sets the vertical radius (in pixels) within which pixels are compared to calculate the blur. Higher values widen the compare area, producing more blur. By default, this value is the same as xAmount.
filter | Gaussian | Select the filtering algorithm to use: • Box • Triangle • Gaussian • Bell • BSpline • Mitchell
borderExtend | Clamp | Select the border extend method for pixels required beyond the image borders: • Mirror • Clamp • Background
useOverscan | globals.compDefaults.useOverscan | Sets whether to use upstream overscan (if available) during the border extension process. If overscan is available (and of usable quality), this typically yields superior results around frame edges. However, if you are unsure of this procedure or the integrity of overscanned areas is unknown, it's safer to leave this disabled. Overscan refers to image pixel data outside of the displayWindow and can be inspected using options in the Monitor. For information on explicitly manipulating these regions, see the ImageCrop node.
channelAmounts
red | 1 | Applies a multiplier to the blur amount for the red channel.
green | 1 | Applies a multiplier to the blur amount for the green channel.
blue | 1 | Applies a multiplier to the blur amount for the blue channel.
alpha | 1 | Applies a multiplier to the blur amount for the alpha channel.