> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# ImageBlur - ComfyUI Built-in Node Documentation

> Complete documentation for the ImageBlur node in ComfyUI. Learn its inputs, outputs, parameters and usage.

The `ImageBlur` node applies a Gaussian blur to an image, allowing for the softening of edges and reduction of detail and noise. It provides control over the intensity and spread of the blur through parameters.

## Inputs

| Field         | Data Type | Description                                                                                                      |
| ------------- | --------- | ---------------------------------------------------------------------------------------------------------------- |
| `image`       | `IMAGE`   | The input image to be blurred. This is the primary target for the blur effect.                                   |
| `blur_radius` | `INT`     | Determines the radius of the blur effect. A larger radius results in a more pronounced blur.                     |
| `sigma`       | `FLOAT`   | Controls the spread of the blur. A higher sigma value means the blur will affect a wider area around each pixel. |

## Outputs

| Field   | Data Type | Description                                                                                                       |
| ------- | --------- | ----------------------------------------------------------------------------------------------------------------- |
| `image` | `IMAGE`   | The output is the blurred version of the input image, with the degree of blur determined by the input parameters. |