Adjustments | image | Spatie

 SPATIE

  Image
========

spatie.be/open-source

  [Docs](https://spatie.be/docs)  [Image](https://spatie.be/docs/image/v2)  Image-manipulations  Adjustments

 Version   v3   v2   v1

 Other versions for crawler [v3](https://spatie.be/docs/image/v3) [v2](https://spatie.be/docs/image/v2) [v1](https://spatie.be/docs/image/v1)

- [ Introduction ](https://spatie.be/docs/image/v2/introduction)
- [ Postcardware ](https://spatie.be/docs/image/v2/postcardware)
- [ Installation and setup ](https://spatie.be/docs/image/v2/installation-and-setup)
- [ Questions & issues ](https://spatie.be/docs/image/v2/questions-and-issues)
- [ Changelog ](https://spatie.be/docs/image/v2/changelog)
- [ About us ](https://spatie.be/docs/image/v2/about-us)

Usage
-----

- [ Basic usage ](https://spatie.be/docs/image/v2/usage/basic-usage)
- [ Saving images ](https://spatie.be/docs/image/v2/usage/saving-images)
- [ Retrieving properties ](https://spatie.be/docs/image/v2/usage/retrieving-properties)
- [ Preparing manipulations ](https://spatie.be/docs/image/v2/usage/preparing-manipulations)
- [ Advanced manipulations ](https://spatie.be/docs/image/v2/usage/advanced-manipulations)

Image manipulations
-------------------

- [ Overview ](https://spatie.be/docs/image/v2/image-manipulations/overview)
- [ Resizing images ](https://spatie.be/docs/image/v2/image-manipulations/resizing-images)
- [ Optimizing images ](https://spatie.be/docs/image/v2/image-manipulations/optimizing-images)
- [ Adjustments ](https://spatie.be/docs/image/v2/image-manipulations/adjustments)
- [ Image canvas ](https://spatie.be/docs/image/v2/image-manipulations/image-canvas)
- [ Effects ](https://spatie.be/docs/image/v2/image-manipulations/effects)
- [ Watermarks ](https://spatie.be/docs/image/v2/image-manipulations/watermarks)

      You are viewing the documentation for **an older version** of this package. You can check the version you are using with the following command:

 `                                    composer show spatie/image                                                                                                                                                                                                                                    `

Adjustments
===========

###  On this page

1. [ Brightness ](#content-brightness)
2. [ Contrast ](#content-contrast)
3. [ Gamma ](#content-gamma)

Brightness
--------------------------------------------------------------------------------------

The `brightness` method adjusts the brightness of the `Image`. The method accepts a value between `-100` and `100`.

```
$image->brightness(-20);
```

![Brightness](../images/example-brightness.jpg)

Contrast
--------------------------------------------------------------------------------

The `contrast` method adjusts the contrast of the `Image`. The method accepts a value between `-100` and `100`.

```
$image->contrast(20);
```

![Contrast](../images/example-contrast.jpg)

Gamma
-----------------------------------------------------------------------

The `gamma` method adjusts the gamma of the `Image`. The method accepts a value between `0.1` and `9.99`.

```
$image->gamma(4.1);
```

![Gamma](../images/example-gamma.jpg)