放大和增强

Upscale or enhance an image based on the supplied parameters. Using a scale of 1 with enhance enabled will only run the enhancer. The image can be provided either as a multipart form-data file upload or as a base64-encoded string in a JSON request.

Authentication: This endpoint accepts either a Bearer API key or a SIGN-IN-WITH-X header for x402 wallet-based authentication. The legacy X-Sign-In-With-X header is also accepted during migration. When using x402, a 402 Payment Required response indicates insufficient balance and includes top-up instructions.

POST /image/upscale

/api/v1/image/upscale

cURL

curl --request POST \
  --url https://api.venice.ai/api/v1/image/upscale \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "enhance": true,
  "enhanceCreativity": 0.5,
  "enhancePrompt": "gold",
  "image": "iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACAIAAAB7GkOtAAAAIGNIUk0A...",
  "scale": 2
}
'

import requests

url = "https://api.venice.ai/api/v1/image/upscale"

payload = {
    "enhance": True,
    "enhanceCreativity": 0.5,
    "enhancePrompt": "gold",
    "image": "iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACAIAAAB7GkOtAAAAIGNIUk0A...",
    "scale": 2
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    enhance: true,
    enhanceCreativity: 0.5,
    enhancePrompt: 'gold',
    image: 'iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACAIAAAB7GkOtAAAAIGNIUk0A...',
    scale: 2
  })
};

fetch('https://api.venice.ai/api/v1/image/upscale', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.venice.ai/api/v1/image/upscale",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'enhance' => true,
    'enhanceCreativity' => 0.5,
    'enhancePrompt' => 'gold',
    'image' => 'iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACAIAAAB7GkOtAAAAIGNIUk0A...',
    'scale' => 2
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.venice.ai/api/v1/image/upscale"

	payload := strings.NewReader("{\n  \"enhance\": true,\n  \"enhanceCreativity\": 0.5,\n  \"enhancePrompt\": \"gold\",\n  \"image\": \"iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACAIAAAB7GkOtAAAAIGNIUk0A...\",\n  \"scale\": 2\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.venice.ai/api/v1/image/upscale")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"enhance\": true,\n  \"enhanceCreativity\": 0.5,\n  \"enhancePrompt\": \"gold\",\n  \"image\": \"iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACAIAAAB7GkOtAAAAIGNIUk0A...\",\n  \"scale\": 2\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.venice.ai/api/v1/image/upscale")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"enhance\": true,\n  \"enhanceCreativity\": 0.5,\n  \"enhancePrompt\": \"gold\",\n  \"image\": \"iVBORw0KGgoAAAANSUhEUgAAAgAAAAIACAIAAAB7GkOtAAAAIGNIUk0A...\",\n  \"scale\": 2\n}"

response = http.request(request)
puts response.read_body

200

"<string>"

{
  "error": "<string>",
  "details": {
    "_errors": [],
    "field": {
      "_errors": [
        "Field is required"
      ]
    }
  }
}

{
  "error": "<string>"
}

{
  "error": "<string>"
}

{
  "error": "<string>"
}

{
  "error": "<string>"
}

{
  "error": "<string>"
}

{
  "error": "<string>"
}

​

Postman 集合

如需更多示例，请参阅此 Postman 集合。

---

授权

BearerAuthsiwx

Authorization · string · header · 必填

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

请求体

application/jsonmultipart/form-data

Upscale or enhance an image based on the supplied parameters. Using a scale of 1 with enhance enabled will only run the enhancer.

image · any string · 必填

The image to upscale. Can be either a file upload or a base64-encoded string. Image dimensions must be at least 65536 pixels and final dimensions after scaling must not exceed 16777216 pixels. File size must be less than 25MB.

enhance · boolean enum<string> · 默认值: false

Whether to enhance the image using Venice's image engine during upscaling. Must be true if scale is 1.

示例:

true

enhanceCreativity · number | null · 默认值: 0.5

Higher values let the enhancement AI change the image more. Setting this to 1 effectively creates an entirely new image.

必填范围: 0 <= x <= 1

示例:

0.5

enhancePrompt · string

The text to image style to apply during prompt enhancement. Does best with short descriptive prompts, like gold, marble or angry, menacing.

Maximum string length: 1500

示例:

"gold"

replication · number | null · 默认值: 0.35

How strongly lines and noise in the base image are preserved. Higher values are noisier but less plastic/AI "generated"/hallucinated. Must be between 0 and 1.

必填范围: 0 <= x <= 1

示例:

0.35

scale · number · 默认值: 2

The scale factor for upscaling the image. Must be a number between 1 and 4. Scale of 1 requires enhance to be set true and will only run the enhancer. Scale must be > 1 if enhance is false. A scale of 4 with large images will result in the scale being dynamically set to ensure the final image stays within the maximum size limits.

必填范围: 1 <= x <= 4

示例:

2

响应

200

image/png

OK

The response is of type file.