Upscale or Downscale image to specified dimensions

August 8, 2024

Table of contents

  1. Request Headers
  2. Query Parameters
  3. Responses
  4. Model
  5. Examples
  6. Try It

Runway AI Tools » Audio tools » Upscale Image.

This endpoint provides free & unlimited image upscaling/downscaling services. It works with free accounts without any limitations as well.

https://api.useapi.net/v1/runwayml/image_upscaler/?…

Request Headers 
Authorization: Bearer {API token}
Query Parameters
  • email is optional when only one account configured. However, if you have multiple accounts configured, this parameter becomes required.
  • image_url is required. Image URL should be either the URL provided by text_to_image_preview or an asset URL from GET /assets. You may need to upload the image using POST /assets and use the URL provided for this parameter.
  • weight is required. Specify image width.
  • height is required. Specify image height.
Responses
Model 
Binary stream in case of HTTP 200 response. 

Otherwise see type provided below:
{ // TypeScript, all fields are optional
    error: string,
    message: string,
    code: number
}
Examples 
  • curl "https://api.useapi.net/v1/runwayml/image_upscaler/?image_url=https://…image.jpg&width=100&height=100" \
   -H "Accept: application/json" \
   -o resized_image.jpg

  • const token = "API token";
const image_url="https://…image.jpg";
const width = 100;
const height = 200;
const apiUrl = `https://api.useapi.net/v1/runwayml/image_upscaler/?image_url=${image_url}&width=${width}&height=${height}`; 
const response = await fetch(apiUrl, {
  headers: {
    "Authorization": `Bearer ${token}`,
  },
});
console.log("response", {response, result});
// response.blob() contains resized image
// • Node.js saving resized image to file:
// response.blob()
//     .then(blob => blob.arrayBuffer())
//     .then(buffer => fs.writeFile('resized_image.jpg', Buffer.from(buffer)));
// • Displaying response as an image on the webpage, as you see below in Try It section:
// const imageBlob = await response.blob();
// const imageUrl = URL.createObjectURL(imageBlob);
// const imageElement = document.getElementById('your-image-id');
// imageElement.src = imageUrl;

  • import requests
# from io import BytesIO
# from PIL import Image

token = "API token"
image_url = "https://…image.jpg"
width = 100
height = 200
api_url = f"https://api.useapi.net/v1/runwayml/image_upscaler/?image_url={image_url}&width={width}&height={height}"

headers = {
    "Authorization": f"Bearer {token}",
}

response = requests.get(api_url, headers=headers)

with open('resized_image.jpg', 'wb') as f:
  f.write(response.content)
    
# • Display the image (for example in a Jupyter Notebook)
# image_stream = BytesIO(response.content)
# image = Image.open(image_stream)
# image.show()
Try It