---
title: Blur
description: Add subtle or dramatic blur effects to your images using Storyblok's Image Service.
url: https://storyblok.com/docs/api/image-service/operations/blur
---

# Blur

Blur the image by appending `filters:blur(VALUE)` with a value between `0` and `150`. The value represents the desired blur radius. The higher the number, the more blurred the image will be.

Specify the value of the sigma used in the Gaussian function by providing a second parameter separated by a comma: `filters:blur(RADIUS,SIGMA)`. This value is optional and defaults to the value specified for the radius.,

Try the interactive demo below.

> [!NOTE]
> The interactive Image Service demo is not available in the Markdown version of this page.

## Pagination

-   [Previous: Introduction](/docs/api/image-service)
-   [Next: Brightness](/docs/api/image-service/operations/brightness)