# Subject Outline ## Overview The Image Editing API allows you to easily add a **colored outline** around the subject of your images. ### `outline.color` To add a **colored outline** to the subject of an image, set the `outline.color` argument to a solid color value. It can be any hexadecimal color code **without** the # symbol (examples: `FF0000`, `FF0000EE`) or a supported color name (see list below). | *(original image)* | `outline.color=white` | | :-----------------------------------------------------------------: | :-----------------------------------------------------------------: | |

List of supported color names

* `aqua` * `black` * `blue` * `cyan` * `fuchsia` * `gray` * `green` * `lime` * `magenta` * `maroon` * `navy` * `olive` * `purple` * `red` * `silver` * `teal` * `white` * `yellow`

{% hint style="warning" %} To preserve the background, you must also set `removeBackground` to `false`. {% endhint %} If you want to give it a try, here is a code snippet to reproduce the example above: ```bash curl --request POST \ --url 'https://image-api.photoroom.com/v2/edit' \ --header 'x-api-key: YOUR_API_KEY_HERE' \ --form 'imageFile=@"/path/to/image.png"' \ --form 'outline.color="white"' \ --form 'referenceBox="originalImage"' \ --form 'removeBackground="false"' \ --output result.png ``` Try it now! ## Additional Parameters ### `outline.width` To control the width (thickness) of the outline, set the argument `outline.width` to a value between `0` and `0.1`. The value represents a ratio of the image size, where `0.1` (10%) is the maximum thickness. When this argument is not provided, the API applies a default value of `0.03`. **Suggested values:** * `0.01-0.02`: Subtle/thin outline * `0.03-0.05`: Standard/medium outline * `0.06-0.1`: Bold/thick outline | `outline.width=0.01` | `outline.width=0.03` | `outline.width=0.1` | | :-----------------------------------------------------------------: | :-----------------------------------------------------------------: | :------------------------------: | |

| ![](/files/8Yx7NtbhVTeLotMhd7yH) | ### `outline.blurRadius` You can apply blur to the outline to create a glow or soft edge effect. To control the blur strength of the outline, set the `outline.blurRadius` argument to a value between `0` (no blur) and `0.025` (maximum blur). When this argument is not provided, the API applies a default value of `0`. | `outline.blurRadius=0` | `outline.blurRadius=0.01` | `outline.blurRadius=0.025` | | :------------------------------: | :------------------------------: | :------------------------------: | | ![](/files/WwFyZ0JWhZq8e5qF7JoU) | ![](/files/RBvBOjhNodWoc0CQGBFm) | ![](/files/5KRacpdOx4rwRn8Jkoeq) | ## Examples


(original image)	(edited image)
	`outline.color=white & outline.width=0.03 & removeBackground=false`
	`outline.color=white & outline.width=0.02 & outline.blurRadius=0.02 & removeBackground=false`
	`outline.color=black & outline.width=0.02 & removeBackground=true`
	`outline.color=fcfc03 & outline.width=0.1 & outline.blurRadius=0.01 & removeBackground=false`

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