# sharpenimage: Sharpen Image

> sharpenimage (Sharpen Image) is a 1001fx API function in the group Images: POST https://api.1001fx.com/images/sharpenimage, 3 credits per call. It works as a ready-made module in Make or as a plain HTTP call.

Sharpens an image (unsharp kernel), e.g. after scaling or for blurry photos.

- Group: Images
- Endpoint: `POST https://api.1001fx.com/images/sharpenimage`
- Authentication: header `X-API-KEY: YOURSECRETAPIKEY`
- Content type: multipart/form-data
- Credits: 3 credits per call
- Ready-made in: Make
- Docs: https://1001fx.com/functions/sharpenimage

## Parameters

- `file` (file, optional) – File: The image (PNG, JPEG, BMP, TIFF, GIF). Either file or fileUrl.
- `fileUrl` (string, optional) – File URL: Public URL of the image. Either file or fileUrl.
- `strength` (number, optional, default `3`, min 1, max 10) – Strength: 1 (light) to 10 (strong), default 3.
- `outputFormat` (enum, optional, one of `png`, `jpeg`, `bmp`, `tiff`, `gif`) – Output format: Format of the result; default: same as the input.

## Example: Sharpen Image

```bash
curl -X POST 'https://api.1001fx.com/images/sharpenimage' \
  -H 'X-API-KEY: YOURSECRETAPIKEY'
```