> For the complete documentation index, see [llms.txt](https://docs.photoroom.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.photoroom.com/image-editing-api-plus-plan/background-blur.md).
# Background Blur
## Overview
The Image Editing API allows you to easily blur the background of any image.
To blur the background of an image, set the argument `background.blur.mode` to either the value:
* `bokeh` A **bokeh blur** simulates the out-of-focus effect of a camera lens. Highlights and bright areas form soft, circular shapes, creating a natural depth-of-field look with smooth, cinematic background blur.
* `gaussian` A **gaussian blur** applies a soft, even blur by averaging each pixel with its neighbors using a bell-curve weighting. This creates a smooth, natural blur that reduces fine detail and noise
| | | |
| :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: |
| *(original image)* | `background.blur.mode=bokeh` | `background.blur.mode=gaussian` |
|  | | |
{% hint style="warning" %}
In order to blur the background, you need to also set `removeBackground` to `false`
{% endhint %}
If you want to give it a try, here's the code to reproduce the example above:
curl --request POST \
--url https://image-api.photoroom.com/v2/edit \
--header 'x-api-key: YOUR_API_KEY_HERE' \
--form imageFile=@/path/to/image.png \
--form background.blur.mode=bokeh \
--form removeBackground=false \
--output result.png
Try it now!
## Additional parameters
### `background.blur.radius`
To the control the strength of the blur, set the argument `background.blur.radius` to a value strictly greater than `0` and lower than or equal to `0.05`.
Higher values mean the result will be blurrier.
This argument is optional and has a default value of `0.01`.
---
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