Torch Object Storage
Torch Object Storage
Torch Object Storage
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Signature Mechanism
The header contains a signature
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Data processing
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C
Object Interface
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Pre-signature Mechanism
Bucket Interface
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Object Interface
Upload Object
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Go
Object Interface
Upload Object
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Bucket Interface
Manage Bucket Configuration
Data Processing
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Introduction to Typical Scenes
Pre-signature Mechanism
Node.js
Pre-signature Mechanism
Bucket Interface
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Object Interface
Upload object
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Introduction to Typical Scenes
Browser.js
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.NET
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PHP
Bucket Interface
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Bucket Interface
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List Objects v2
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Rust
Pre-signing mechanism
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Error Codes
01-SERVICE_ERROR
02-AUTH
03-ACCESS_CONTROL
04-QOS
05-REQUEST
06-BUCKET
07-LIFECYCLE
08-ACL
09-CORS
10-POLICY
11-MIRROR
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14-NOTIFICATION
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18-TAG
19-MULTIPART
20-STORAGE_CLASS
21-CALLBACK
22-DATA_PROCESS
23-BATCH
24-STORAGE_LENS
25-INVENTORY
26-DIRECTORY_BUCKET
FAQ
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AIGC-Doubao LLMs
Accessing TOS with third-party tools
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- Documentation
Torch Object StorageAPI ReferenceBucketData ProcessingImage processingImageUnderstanding
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Download PDFImage processing
ImageUnderstanding
Copy pageDownload PDFImageUnderstanding
Description
This interface is used to analyze image content.
Notes
- This interface is in beta testing; contact your account manager for access.
- Each image must be smaller than 10 MB.
- When using base64 encoding, the request body size must not exceed 64 MB.
- Image formats supported: JPEG, PNG, GIF, WEBP, BMP, TIFF, ICO, DIB, ICNS, SGI, JPEG2000, HEIC, HEIF.
Request syntax
GET example.png?x-tos-process=image/understanding,d_low,m_ZG91YmFvLXNlZWQtMS42LXZpc2lvbg==,p_6K-36Zeu5Zu-54mH6YeM5pyJ5Yeg5Liq5Lq6
Request parameters and headers
Field name | Location | Type | Required | Example value | Description |
Field name | Location | Type | Required | Example value | Description |
x-tos-process | Query | String | Yes | image/understanding | Represents a special identifier for image understanding requests. |
Request body elements
Field name | Type | Required | Example value | Description |
Field name | Type | Required | Example value | Description |
m | String | Yes | ZG91YmFvLXNlZWQtMS42LXZpc2lvbg== | Ark model name (base64 url encoded), value is doubao-seed-1.6-vision. |
p | String | Yes | 6K-36Zeu5Zu-54mH6YeM5pyJ5Yeg5Liq5Lq6 | Prompt (base64 URL encoded), original text length does not exceed 1024 bytes. |
d | String | No | low | Controls image understanding detail level, values list:
|
Response headers
Response body elements
Field name | Type | Example value | Description |
Field name | Type | Example value | Description |
Code | String | OK | Status code. |
Sample request
GET example.png?x-tos-process=image/understanding,d_low,m_ZG91YmFvLXNlZWQtMS42LXZpc2lvbg==,p_6K-36Zeu5Zu-54mH6YeM5pyJ5Yeg5Liq5Lq6
Sample response
HTTP/1.1 200 OK
Accept-Ranges: bytes
Connection: keep-alive
Content-Length: <length>
Content-Type: application/json
Date: Thu, 11 Sep 2025 07:58:45 GMT
ETag: "0c92b9a96edc3408dc9583a94f69f88b-3"
Last-Modified: Thu, 11 Sep 2025 07:41:31 GMT
x-tos-create-time: Thu, 11 Sep 2025 07:41:31 GMT
x-tos-data-process: image
x-tos-request-id: <reqid>
{
"Content": "The picture shows three people, namely..."
}
Last updated: 2026.02.10 15:12:57
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