bilibili-API-collect/docs/misc/picture.md
Session小胡 18c1efbc10
feat: bili_ticket 算法 Java 实现 及 信息补充 及 错误修正 (#1061)
* feat: 空间头图及拼写错误修正

* feat(fav/info.md): code 11010

* fix(misc/sign/wbi.md): java extra params

* feat(misc/sign/bili_ticket.md): description and java demo

* feat(video_ranking/dynamic.md): 分区视频相关接口

* fix(video_ranking/dynamic.md): 未关闭的标签

* feat(README.md): 补充链接

* feat(clientinfo/ip.md): 查询任意 IP 地址的归属地

* feat: get buvid3 buvid4 from api

* feat: new error code & format

* feat(misc/picture.md): 图片格式化更多规则
2024-07-25 20:03:52 +08:00

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# 图片格式化
对于 `*.hdslb.com/bfs` 下的图片文件都可以使用以下可选格式化参数.
使用 `@` 开始参数 (无论格式如何, 无论是否有参数, 通过计算 HASH 发现, 使用 `@` 均会导致返回图片不同), 多个参数以 `_` 分隔, 图片格式无需分隔且必须放在最后
参见: [#191](https://github.com/SocialSisterYi/bilibili-API-collect/issues/191)
注: jpg 即 jpeg, 二者等效. 网页端常用 AVIF, WebP.
| 参数 | 格式 | 含义 | 备注 |
| ---- | ------- | ---------------- | ---------------- |
| w | ${int}w | 图片最大限制宽度 | 范围 [1, 9223372036854775807] |
| h | ${int}h | 图片最大限制高度 | 范围 [1, 9223372036854775807] |
| s | ${int}s | 作用尚不明确 | 不影响输出结果, 范围 [1, 9223372036854775807] |
| e | ${int}e | 改变大小 | 0: 保留比例取其小, 1: 保留比例取其大, 2: 不保留原比例 |
| p | ${int}p | 缩放倍数 | 默认100, 范围 [1, 1000] |
| o | ${int}o | 作用尚不明确 | 不影响输出结果 范围 [0, 1] |
| q | ${int}q | 图片质量百分比 | 仅限webp/jpeg/avif |
| c | ${int}c | 裁切图片(如果宽高允许) | 0: 不裁切但会修改图片, 1: 上传时的预设规则(若无则右下), 2: 左上, 3: 右上 |
| f | ${int}f | 作用尚不明确 | [0, 1]: 不改变图片, 2: 会改变图片 |
| progressive | progressive | 图片编码方式 | 仅限 jpeg(无: baseline, 有: progressive)/png(无:non-interlaced, 有: interlaced) |
| ! | !${str} | 加载来源 | web-home-carousel-cover, header, web-dynamic, web-avatar-space-header, ... |
| . | .${str} | 图片格式 | 仅限 png/jpeg/webp/avif/[avg_color](#avg_color格式说明) |
**示例:**
<details>
<summary>查看示例:</summary>
原始图片
https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg
![](https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg)
高度限制为100
https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg@100h
![](https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg@100h)
宽度限制为100
https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg@100w
![](https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg@100w)
转换格式为webp
https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg@.webp
![](https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg@.webp)
转换为webp图片质量为1%
https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg@1q.webp
![](https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg@1q.webp)
</details>
## avg_color格式说明
当图片格式化输出格式为`avg_color`时
> \*.hdslb.com/bfs/\*/\*.*@\*.avg_color
*请求方式GET*
**json回复**
根对象:
| 字段 | 类型 | 内容 | 备注 |
| ------ | ---- | ----------- | ------ |
| RGB | str | 平均颜色值 | HEX |
**示例:**
获取 https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg 的平均颜色值
```shell
curl 'https://i1.hdslb.com/bfs/archive/e5fff1472bad1c0c6bcb3004205f9be23b58ffc0.jpg@.avg_color'
```
<details>
<summary>查看响应示例:</summary>
```json
{
"RGB": "#7d6f6c"
}
```
</details>