图像编辑最佳实践

import fs from "fs";
import OpenAI, { toFile } from "openai";

const client = new OpenAI({
    apiKey: STEP_API_KEY,
    baseURL: "https://api.stepfun.com/v1"
});

const file = await toFile(fs.createReadStream("cat.jpg"), null, {
    type: "image/jpeg"
});

const rsp = await client.images.edit({
    model: "step-image-edit-2",
    image: file,
    prompt: "变成一只英短猫",
    // @ts-expect-error this is not yet public
    cfg_scale: 1.0,
    steps: 8,
    seed: 1,
    response_format: "b64_json"
});

console.log(rsp);

const image_base64 = rsp.data[0].b64_json;
const image_bytes = Buffer.from(image_base64, "base64");
fs.writeFileSync("cat2.jpg", image_bytes);

curl -X POST "https://api.stepfun.com/v1/images/edits" \
  -H "Authorization: Bearer $STEP_API_KEY" \
  -F 'model=step-image-edit-2' \
  -F 'image=@test_cref_input02_resized.webp' \
  -F 'prompt=让图中角色骑自行车，手上举个牌子写着"沙特阿拉伯"' \
  -F 'response_format=b64_json' \
  -F 'cfg_scale=1.0' \
  -F 'steps=8' \
  -F 'seed=1' \
  -F 'text_mode=true'