> For the complete documentation index, see [llms.txt](https://docs.cloudimage.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cloudimage.io/transformations/image-filters/face-blur.md).

# Face blur

{% hint style="info" %}
Face blur is powered by Visual Operations Credits; full details on consumption rates can be found here: [Visual Operation Credits table](https://docs.cloudimage.io/account-management/usage#visual-operation-credits-table)
{% endhint %}

Detects all faces in the image and applies blur to conceal them. To activate the filter, set X to 1 (`blur_faces=1`). You can control the blur radius (default: `R=30`) and sigma (default: `S=1000`).

<mark style="color:green;">**blur\_faces=1\[,R\[,S]]**</mark>

## Examples

| Preview                                                             | Syntax                                                                                                                                                                                                                                                                                                  |
| ------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <img src="/files/V29Rd4KGMKdTRDd4FW0L" alt="" data-size="original"> | <p>Original image:</p><p><a href="https://doc.cloudimg.io/https://samples.scaleflex.com/busystreet.jpg?w=600">/samples.scaleflex.com/busystreet.jpg?<mark style="color:orange;"><strong>w=600</strong></mark></a></p>                                                                                   |
| <img src="/files/DslHKVnrmhxJti7zR6CR" alt="" data-size="original"> | <p>Faces blurred:</p><p><a href="https://doc.cloudimg.io/https://samples.scaleflex.com/busystreet.jpg?w=600&#x26;blur_faces=1">/samples.scaleflex.com/busystreet.jpg?<mark style="color:orange;"><strong>w=600</strong></mark>&<mark style="color:green;"><strong>blur\_faces=1</strong></mark></a></p> |