• 请求方式：GET，支持浏览器直接访问与跨域引用。 Method: GET, works in the browser and cross-origin.
• 自适应尺寸：根据终端设备（手机 / 平板 / 桌面）自动返回匹配分辨率的图片，无需传参。 Adaptive size: returns a matching resolution based on the requesting device (phone / tablet / desktop) — no parameters needed.
• 返回内容：图片二进制流（JPEG / PNG / WebP），可直接用于 <img> 或 CSS 背景。 Response: raw image bytes (JPEG / PNG / WebP), usable in <img> or CSS.
• 输出格式：默认返回图片二进制流；添加 ?output=json 可获取 JSON 数据，包含图片地址与元信息。 Output format: returns raw image by default; add ?output=json to get JSON with image URL and metadata.
• 鉴权：无需密钥，匿名即可调用，但请勿高频轮询。 Auth: none required; please avoid high-frequency polling.
• 缓存：每次请求随机返回一张；加 ?_=时间戳 可绕过浏览器缓存。 Cache: a random image per request; append ?_=timestamp to bypass cache.
• 响应时间：视图片体积而定，建议加 loading 占位与超时处理。 Latency: depends on file size; add a loading placeholder and timeout.
• 用途限制：仅供学习交流，商业使用请先取得作者授权。 Usage: for learning and exchange only; commercial use requires permission.

<!-- 每次刷新页面都会换一张 -->
<img src="https://www.sjimg.com/img/scenery"
     alt="随机风景"
     loading="lazy">

.hero {
  background-image: url("https://www.sjimg.com/img/scenery");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

const BASE = 'https://www.sjimg.com/img/';

// 换一张：key 见上方分类表
function roll(key = 'scenery') {
  const img = document.getElementById('pic');
  img.src = BASE + key + '?_=' + Date.now();
}

// 绑定按钮
document.querySelector('#roll')
  .addEventListener('click', () => roll('scenery'));

<!-- 论坛 / 笔记里直接插入 -->

![随机风景](https://www.sjimg.com/img/scenery)

![随机车模](https://www.sjimg.com/img/car)

{
  "success": true,
  "type": "scenery",
  "deviceType": "desktop",
  "data": {
    "img": "https://www.sjimg.com/1024x1468/Image_12345.jpg",
    "title": "无标题",
    "copyright": "无，中国 (© A/B Images)",
    "date": "20260917",
    "desc": "暂无描述",
    "urlbase": "Image",
    "type": "JPG"
  }
}

友情提醒：请不要高频轮询或批量抓取接口，以免给服务器带来压力； 引用时请注明来源「世界图库 World Gallery」，并遵守 《版权协议》。

Friendly reminder: please do not poll or scrape this endpoint aggressively. When embedding, credit “World Gallery” and follow our Terms of Service.