# Sharpen

Sharpening is a powerful tool to emphasize texture and details, especially on smaller images, e.g. thumbnails. Cloudimage can apply an **unsharp mask** filter which will make your image look sharper. You can specify the filter radius (X) in pixels.

<mark style="color:green;">**sharp=X**</mark>

## Examples

| Preview                                                                                            | Syntax                                                                                                                                                                                                                                                                                     |
| -------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| ![](https://content.gitbook.com/content/IDIcmPiz7q6Sr6ZHHQxV/blobs/S2MSh76rwWie0KrSJ7sF/image.png) | <p>Only resize:<br><a href="https://doc.cloudimg.io/https://samples.scaleflex.com/darkside.jpg?w=300">/samples.scaleflex.com/darkside.jpg?<mark style="color:orange;"><strong>w=300</strong></mark></a></p>                                                                                |
| ![](https://content.gitbook.com/content/IDIcmPiz7q6Sr6ZHHQxV/blobs/NxqTdO19vsdwXv5ntP2A/image.png) | <p>Resize and sharpen:<br><a href="https://doc.cloudimg.io/https://samples.scaleflex.com/darkside.jpg?w=300&#x26;sharp=3">/samples.scaleflex.com/darkside.jpg?<mark style="color:orange;"><strong>w=300</strong></mark>&<mark style="color:green;"><strong>sharp=3</strong></mark></a></p> |