Skills

Enlarge an image in Duaer

In Duaer, enlarge an existing image and keep the subject, layout, colors, and text. One successful image uses the image credits of that model.

What Duaer returns

data[0].b64_json is the enlarged image.

Key

Before you call, get a Duaer key.

Call skill

Paste this English skill into an agent. It matches Copy skill in the Duaer data market.

---
name: duaer-upscale
description: >-
  Enlarge one image with Duaer. The subject, layout, colors, and text stay.
  One successful image uses that model's image credits.
---

# Enlarge an image with Duaer

Duaer Upscale sends an existing image to `POST https://api.duaer.com/v1/images/generations` and asks the model to enlarge it without adding or removing anything.

## When to use

- You already have a picture and need a larger one.
- On the canvas, use the Duaer Upscale node. It reads binary field `data`.

## Call

`POST https://api.duaer.com/v1/images/generations`

Header: `Authorization: Bearer <Duaer key>`

```json
{
  "model": "doubao-seedream-5.0-lite",
  "prompt": "Enlarge this image to the requested size. Keep the same subject, layout, colors, and text. Do not add or remove anything.",
  "size": "2560x1440",
  "response_format": "b64_json",
  "watermark": true,
  "image": "data:image/png;base64,..."
}
```

Use an account key or a model API key.

Get a Duaer key: https://skills.duaer.com/keys.md

## Parameters

- `image` — Required. A data URL of the source picture.
- `size` — `2560x1440` for a wide image, `1440x2560` for a tall image, `2048x2048` for a square image.
- `model` — An image model enabled in Duaer.

## Result

`data[0].b64_json` is the enlarged image.

How-to: https://doc.duaer.com/build/duaer-upscale.md

## Credits

One successful image uses that model's image credits.
A request that fails before the model runs uses 0.
No remaining credits returns 402 and does not generate.
A missing key returns 401.

## Related

- https://skills.duaer.com/cutout.md — Duaer Cutout
- https://skills.duaer.com/edit.md — Duaer Edit
- https://skills.duaer.com/image-mesh.md — Duaer Mesh

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