## Image to Image

Image-to-image is the task of transforming a source image to match the characteristics of a target image or a target image domain.

Example applications:
* Transferring the style of an image to another image
* Colorizing a black and white image
* Increasing the resolution of an image

> [!TIP]
> For more details about the `image-to-image` task, check out its [dedicated page](https://huggingface.co/tasks/image-to-image)! You will find examples and related materials.

### Recommended models

- [black-forest-labs/FLUX.1-Kontext-dev](https://huggingface.co/black-forest-labs/FLUX.1-Kontext-dev): Powerful image editing model.
- [kontext-community/relighting-kontext-dev-lora-v3](https://huggingface.co/kontext-community/relighting-kontext-dev-lora-v3): Image re-lighting model.

Explore all available models and find the one that suits you best [here](https://huggingface.co/models?inference=warm&pipeline_tag=image-to-image&sort=trending).

### Using the API

<InferenceSnippet
    pipeline=image-to-image
    providersMapping={ {"fal-ai":{"modelId":"black-forest-labs/FLUX.2-dev","providerModelId":"fal-ai/flux-2/edit"},"replicate":{"modelId":"black-forest-labs/FLUX.2-dev","providerModelId":"black-forest-labs/flux-2-dev"},"wavespeed":{"modelId":"black-forest-labs/FLUX.2-dev","providerModelId":"wavespeed-ai/flux-2-dev/edit"}} }
/>

### API specification

#### Request

| Headers |   |    |
| :--- | :--- | :--- |
| **authorization** | _string_ | Authentication header in the form `'Bearer: hf_****'` when `hf_****` is a personal user access token with "Inference Providers" permission. You can generate one from [your settings page](https://huggingface.co/settings/tokens/new?ownUserPermissions=inference.serverless.write&tokenType=fineGrained). |

| Payload |  |  |
| :--- | :--- | :--- |
| **inputs*** | _string_ | The input image data as a base64-encoded string. If no `parameters` are provided, you can also provide the image data as a raw bytes payload. |
| **parameters** | _object_ |  |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;prompt** | _string_ | The text prompt to guide the image generation. |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;guidance_scale** | _number_ | For diffusion models. A higher guidance scale value encourages the model to generate images closely linked to the text prompt at the expense of lower image quality. |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;negative_prompt** | _string_ | One prompt to guide what NOT to include in image generation. |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;num_inference_steps** | _integer_ | For diffusion models. The number of denoising steps. More denoising steps usually lead to a higher quality image at the expense of slower inference. |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;target_size** | _object_ | The size in pixels of the output image. This parameter is only supported by some providers and for specific models. It will be ignored when unsupported. |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;width*** | _integer_ |  |
| **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;height*** | _integer_ |  |

#### Response

| Body |  |
| :--- | :--- | :--- |
| **image** | _unknown_ | The output image returned as raw bytes in the payload. |