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

# Blur and Sharpen

> Apply blur effects or sharpen images for clarity and focus control

Control image sharpness and focus with blur and sharpen filters. Perfect for emphasizing subjects, creating depth effects, obscuring sensitive information, or enhancing image clarity.

## Parameters

<ParamField query="sharpen" type="boolean">
  Enhance image clarity by increasing edge definition.

  **Default:** `false`
</ParamField>

<ParamField query="blur" type="integer">
  Apply a blur effect to soften the image.

  **Range:** `0` to `100`

  **Default:** `0`
</ParamField>

## How it works

Bunny Optimizer provides two complementary filters for controlling image sharpness:

**Sharpen:** Enhances edge definition and detail by increasing contrast along edges. Makes images appear crisper and more defined.

**Blur:** Softens the image by reducing detail and creating a smooth, out-of-focus effect. Higher values produce stronger blur.

## Usage

### Sharpen

Enhance image clarity by sharpening edges and details. The sharpen filter increases contrast along edges to make the image appear crisper.

```bash Original image theme={null}
https://yourzone.b-cdn.net/image.jpg?sharpen=false
```

| sharpen=false                                                                                        | sharpen=true                                                                                     |
| ---------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------ |
| ![Original sharpness](https://bunny-optimizer-demo.b-cdn.net/bunny_next_to_flower.jpg?sharpen=false) | ![Sharpened image](https://bunny-optimizer-demo.b-cdn.net/bunny_next_to_flower.jpg?sharpen=true) |

Useful for enhancing soft or slightly out-of-focus images, improving perceived detail after resizing, or compensating for compression artifacts.

### Blur

Apply a blur effect to soften the image. The blur intensity increases with higher values, creating progressively softer results.

```bash No blur theme={null}
https://yourzone.b-cdn.net/image.jpg?blur=0
```

| blur=0                                                             | blur=10                                                                |
| ------------------------------------------------------------------ | ---------------------------------------------------------------------- |
| ![No blur](https://bunnyoptimizerdemo.b-cdn.net/bunny5.jpg?blur=0) | ![Light blur](https://bunnyoptimizerdemo.b-cdn.net/bunny5.jpg?blur=10) |

```bash Medium blur theme={null}
https://yourzone.b-cdn.net/image.jpg?blur=25
```

| blur=0                                                             | blur=25                                                                 |
| ------------------------------------------------------------------ | ----------------------------------------------------------------------- |
| ![No blur](https://bunnyoptimizerdemo.b-cdn.net/bunny5.jpg?blur=0) | ![Medium blur](https://bunnyoptimizerdemo.b-cdn.net/bunny5.jpg?blur=25) |

```bash Heavy blur theme={null}
https://yourzone.b-cdn.net/image.jpg?blur=60
```

| blur=0                                                             | blur=60                                                                |
| ------------------------------------------------------------------ | ---------------------------------------------------------------------- |
| ![No blur](https://bunnyoptimizerdemo.b-cdn.net/bunny5.jpg?blur=0) | ![Heavy blur](https://bunnyoptimizerdemo.b-cdn.net/bunny5.jpg?blur=60) |

Perfect for creating background effects, obscuring sensitive information like faces or license plates, generating thumbnails with privacy protection, or adding depth-of-field effects to emphasize foreground subjects.

## Combining with other transformations

Blur and sharpen filters work seamlessly with other Bunny Optimizer parameters:

```bash Sharpen after resize theme={null}
https://yourzone.b-cdn.net/image.jpg?width=800&sharpen=true
```

```bash Blur with crop theme={null}
https://yourzone.b-cdn.net/image.jpg?crop=600,400&blur=15
```

```bash Sharpen with brightness theme={null}
https://yourzone.b-cdn.net/image.jpg?sharpen=true&brightness=10
```

```bash Blur background with focus crop theme={null}
https://yourzone.b-cdn.net/image.jpg?focus_crop=400,300,0.5,0.5&blur=30
```

<Note>
  Applying sharpen after resizing images can help restore clarity lost during
  the resize operation. This is especially useful when creating smaller
  thumbnails or responsive images.
</Note>