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Portrait Matting

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フォーカスモード

フォントサイズ

最終更新日: 2026-01-19 11:11:12

Feature Overview
Cloud Infinite provides intelligent portrait matting through the AIPortraitMatting API. It can detect portrait entity information in images, intelligently separate image backgrounds, generate images that only contains portrait entity information, and can support persistent processing, processing in the cloud, and processing during download.
Service Activation
Using this feature requires enabling Cloud Infinite in advance and binding a bucket.
Authorization Guide
When used with a sub-account, corresponding permissions must be granted. For COS permissions, please refer to Cloud Object Storage. For other CI permissions, please refer to Cloud Infinite.
Processing during download: Set action to cos:GetObject, ci:CreateS3AIPicPortraitMattingJob in the authorization policy.
Processing during upload: Set action to cos:PutObject in the authorization policy.
Processing in the cloud: Set action to cos:GetObject, cos:PutObject in the authorization policy. (Note: GetObject corresponds to the source file resource, and PutObject corresponds to the transferred file resource).
Use Limits
When using this API, please first confirm the relevant restrictions. For details, see Specifications and Limits.
Method One: Processing during Download
Request
 Original images are stored in COS.
GET /<ObjectKey>?ci-process=AIPortraitMatting HTTP/1.1
Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
Date: <GMT Date>
Authorization: <Auth String>
 The original image comes from other link.
GET /<ObjectKey>?ci-process=AIPortraitMatting&detect-url=<detect-url> HTTP/1.1
Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
Date: <GMT Date>
Authorization: <Auth String>
Processing Parameter 
Operation name: AIPortraitMatting
Parameter
Meaning
Type
Required
ObjectKey
Object filename, for example: folder/document.jpg
String
No
ci-process
Cloud Infinite processing capability, portrait matting fixed as AIPortraitMatting
String
Yes
detect-url
You can process any publicly accessible image link by filling in detect-url. If detect-url is not specified, the backend will process the ObjectKey by default. If detect-url is filled in, the backend will process the detect-url link, and there is no need to fill in the ObjectKey. 
 detect-url example: http://www.example.com/abc.jpg, which needs to be url-encoded, and the processed result is http%25253A%25252F%25252Fwww.example.com%25252Fabc.jpg
String
No
center-layout
Center the subject in the image; display centered when the value is 1, no action taken when the value is 0, default is 0
Integer
No
padding-layout
Apply padding to all four sides of the processed image, with the format padding-layout = <dx> x <dy>, where dx pixels are added to the left and right sides, and dy pixels are added to the top and bottom sides. For example: padding-layout = 20 x 10
Default does not perform blanking operation, maximum value of dx and dy is 1000 pixels.
String
No
Response
HTTP/1.1 200 OK
Content-Type: image/png
Content-Length: 98645
Date: Tue, 23 Apr 2022 09:06:16 GMT
Server: tencent-ci
Status: 200 OK
x-cos-request-id: NWFjMzQ0MDZfOTBmYTUwXzZkZV8z****
﻿
[pic-content]
The processed image is returned directly in the response body.
Method Two: Processing during Upload
Request Syntax
PUT  /<ObjectKey> HTTP/1.1
Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
Date: GMT Date
Authorization: Auth String
Pic-Operations: <PicOperations>
Note:
Authorization: Auth String. For details, see Request Signature documentation.
Request
Request Header
This API uses common request headers. For details, see Common Request Headers documentation. 
 In addition to the common request headers, the following headers are required:
Header Name
Description
Type
Pic-Operations
Parameters for image operations
String
Pic-Operations is a JSON format string. The specific parameters are as follows:
Parameter
Description
Type
Required
is_pic_info
Whether to return original image information, 0 means no, 1 means yes, default is 0
Int
No
rules
Processing rule, Content Recognition only supports one rule
Array
No
Each item in the rules (JSON array) has the following specific parameters:
Parameter Name
Description
Type
Required
bucket
Destination bucket name for storing results, format is BucketName-AppId, if not specified, it will be saved to the current bucket by default
String
No
fileid
Storage path and name of the processed file. Name rule description:
For example, the source file path and name are: /p1/test1.jpg
Absolute paths start with /, for example, when the fileid value is /p2/test2.jpg, it means a file named test2.jpg is stored in the p2 folder.
Relative paths do not start with /, for example, when the fileid value is p2/test2.jpg, it means a p2 folder is created in the p1 folder, and then a file named test2.jpg is stored in the p2 folder.
Do not end with /, otherwise an empty filename will occur
If you want the repaired image to overwrite the original image, set the fileid field to <ObjectKey>
String
Yes
rule
Fixed as: ci-process = AIPortraitMatting Other processing parameters refer to processing during download﻿
String
Yes
Request Body
The request body contains the original image to be processed.
[Image Content]
Response
Response Headers
This API only returns common response headers. For details, see Common Response Headers documentation.
Response Body
The response body is returned as application/xml, and the data content is as follows:
Node Name (Keyword)
Parent Node
Description
Type
UploadResult
None.
Request result
Container
The content of UploadResult:
Node Name (Keyword)
Parent Node
Description
Type
OriginalInfo
UploadResult
Image information
Container
ProcessResults
UploadResult
Request processing result
Container
The content of the OriginalInfo node:
Node Name
Parent Node
Description
Type
Key
OriginalInfo
Original image filename
String
Location
OriginalInfo
image path
String
ETag
OriginalInfo
Original image ETag value
String
The content of the ProcessResults node:
Node Name (Keyword)
Parent Node
Description
Type
Object
ProcessResults
Processing result of each image
Container
The content of the Object node：
Node Name (Keyword)
Parent Node
Description
Type
Key
Object
Image file name after matting
String
Location
Object
Image link after matting
String
ETag
Object
ETag value of the image after matting
String
Size
Object
Image size after matting
Int
Practical Example
Request
PUT /<ObjectKey> HTTP/1.1
Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
Date: GMT Date
Authorization: Auth String
Pic-Operations: 
{
  "is_pic_info": 1,
  "rules": [{
      "fileid": "exampleobject",
      "rule": "ci-process=AIPortraitMatting"
  }]
}
Processed images are stored to bucket, with the value of fileid as the object name.
Response
HTTP/1.1 200 OK
Content-Type: application/xml
Content-Length: 645
Date: Tue, 23 Apr 2022 09:06:16 GMT
Status: 200 OK
Server: tencent-ci
x-cos-request-id: NWFjMzQ0MDZfOTBmYTUwXzZkZV8z****
﻿
<UploadResult>
    <OriginalInfo>
        <Key>goods_matting.jpg</Key>
        <Location>examplebucket-1250000000.cos.ap-chengdu.myqcloud.com/filename.jpg</Location>
        <ETag>"ed60e3598e6862d8c8443a06acfb2153"</ETag>
    </OriginalInfo>
    <ProcessResults>
        <Object>
            <Key>goods_matting_process.jpeg</Key>
            <Location>examplebucket-1250000000.cos.ap-chengdu.myqcloud.com/exampleobject</Location>
            <Format/>
            <Size>354256</Size>
            <ETag>"521451f63c331becf533e466732c1091"</ETag>
        </Object>
    </ProcessResults>
</UploadResult>
Method Three: Processing in the Cloud
Request Syntax
POST /<ObjectKey>?image_process HTTP/1.1
Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
Date: GMT Date
Authorization: Auth String
Pic-Operations: <PicOperations>
Note:
Authorization: Auth String. For details, see Request Signature documentation.
Request
Request Header
This API uses common request headers. For details, see Common Request Headers documentation. 
 In addition to common headers, the following headers are required:
Header Name
Description
Type
Pic-Operations
Parameters for image operations
String
Pic-Operations is a JSON format string. The specific parameters are as follows:
Parameter 
Description
Type
Required
is_pic_info
Whether to return original image information, 0 means no, 1 means yes, default is 0
Int
No
rules
Processing rules, one rule corresponds to one processing result (currently supports five rules). If left blank, no image processing will be performed.
Array
No
Each item in the rules (JSON array) has the following specific parameters:
Parameter Name
Description
Type
Required
bucket
Destination bucket name for storing results, format is BucketName-AppId, if not specified, it will be saved to the current bucket by default
String
No
fileid
Storage path and name of the processed file. Name rule description:
For example, the source file path and name are: /p1/test1.jpg
Absolute paths start with /, for example, when the fileid value is /p2/test2.jpg, it means a file named test2.jpg is stored in the p2 folder.
Relative paths do not start with /, for example, when the fileid value is p2/test2.jpg, it means a p2 folder is created in the p1 folder, and then a file named test2.jpg is stored in the p2 folder.
Do not end with /, otherwise an empty filename will occur
If you want the repaired image to overwrite the original image, set the fileid field to <ObjectKey>
String
Yes
rule
Fixed as: ci-process = AIPortraitMatting. center-layout and padding-layout match processing during download.
String
Yes
Request Body
The request body contains the original image to be processed.
[Image Content]
Response
Response Header
This API only returns common response headers. For details, see Common Response Headers documentation.
Response Body
The response body is returned as application/xml, and the data content is as follows:
Node Name (Keyword)
Parent Node
Description
Type
UploadResult
None.
Request result.
Container
The content of UploadResult
Node Name (Keyword)
Parent Node
Description
Type
OriginalInfo
UploadResult
Image information
Container
ProcessResults
UploadResult
Request processing result
Container
The content of the OriginalInfo node
Node Name
Parent Node
Description
Type
Key
OriginalInfo
Original image filename
String
Location
OriginalInfo
Original image path
String
Etag
OriginalInfo
Original image ETag value
String
The content of ProcessResults node:
Node Name (Keyword)
Parent Node
Description
Type
Object
ProcessResults
Processing result of each image
Container
The content of Object node:
Node Name (Keyword)
Parent Node
Description
Type
Key
Object
Image file name after matting
String
Location
Object
Image link after matting
String
ETag
Object
ETag value of the image after matting
String
Size
Object
Image size after matting
Int
Practical Example
Request
POST /<ObjectKey>?image_process HTTP/1.1
Host: <BucketName-APPID>.cos.<Region>.myqcloud.com
Date: GMT Date
Content-length: Size
Authorization: Auth String
Pic-Operations: 
{
  "rules": [{
      "fileid": "exampleobject",
      "rule": "ci-process=AIPortraitMatting"
  }]
}
Processed images are stored to bucket, with the value of the fileid as the object name.
Response
HTTP/1.1 200 OK
Content-Type: application/xml
Content-Length: 645
Date: Tue, 23 Apr 2022 09:06:16 GMT
Status: 200 OK
Server: tencent-ci
x-cos-request-id: NWFjMzQ0MDZfOTBmYTUwXzZkZV8z****
﻿
<UploadResult>
    <OriginalInfo>
        <Key>goods_matting.jpg</Key>
        <Location>examplebucket-1250000000.cos.ap-chengdu.myqcloud.com/filename.jpg</Location>
        <ETag>"ed60e3598e6862d8c8443a06acfb2153"</ETag>
    </OriginalInfo>
    <ProcessResults>
        <Object>
            <Key>goods_matting_process.jpeg</Key>
            <Location>examplebucket-1250000000.cos.ap-chengdu.myqcloud.com/exampleobject</Location>
            <Format/>
            <Size>354256</Size>
            <ETag>"521451f63c331becf533e466732c1091"</ETag>
        </Object>
    </ProcessResults>
</UploadResult>
﻿

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フィードバック

Parameter	Meaning	Type	Required
ObjectKey	Object filename, for example: folder/document.jpg	String	No
ci-process	Cloud Infinite processing capability, portrait matting fixed as AIPortraitMatting	String	Yes
detect-url	You can process any publicly accessible image link by filling in detect-url. If detect-url is not specified, the backend will process the ObjectKey by default. If detect-url is filled in, the backend will process the detect-url link, and there is no need to fill in the ObjectKey. detect-url example: `http://www.example.com/abc.jpg`, which needs to be url-encoded, and the processed result is `http%25253A%25252F%25252Fwww.example.com%25252Fabc.jpg`	String	No
center-layout	Center the subject in the image; display centered when the value is 1, no action taken when the value is 0, default is 0	Integer	No
padding-layout	Apply padding to all four sides of the processed image, with the format padding-layout = <dx> x <dy>, where dx pixels are added to the left and right sides, and dy pixels are added to the top and bottom sides. For example: padding-layout = 20 x 10 Default does not perform blanking operation, maximum value of dx and dy is 1000 pixels.	String	No

Header Name	Description	Type
Pic-Operations	Parameters for image operations	String

Parameter Name	Description	Type	Required
bucket	Destination bucket name for storing results, format is BucketName-AppId, if not specified, it will be saved to the current bucket by default	String	No
fileid	Storage path and name of the processed file. Name rule description: For example, the source file path and name are: /p1/test1.jpg Absolute paths start with /, for example, when the fileid value is /p2/test2.jpg, it means a file named test2.jpg is stored in the p2 folder. Relative paths do not start with /, for example, when the fileid value is p2/test2.jpg, it means a p2 folder is created in the p1 folder, and then a file named test2.jpg is stored in the p2 folder. Do not end with /, otherwise an empty filename will occur If you want the repaired image to overwrite the original image, set the fileid field to <ObjectKey>	String	Yes
rule	Fixed as: ci-process = AIPortraitMatting Other processing parameters refer to processing during download	String	Yes

Node Name (Keyword)	Parent Node	Description	Type
UploadResult	None.	Request result	Container

Node Name	Parent Node	Description	Type
Key	OriginalInfo	Original image filename	String
Location	OriginalInfo	image path	String
ETag	OriginalInfo	Original image ETag value	String

tencent cloud

Cloud Infinite

Portrait Matting

Feature Overview

Service Activation

Authorization Guide

Use Limits

Method One: Processing during Download

Request

Processing Parameter

Response

Method Two: Processing during Upload

Request Syntax

Request

Request Header

Request Body

Response

Response Headers

Response Body

Practical Example

Request

Response

Method Three: Processing in the Cloud

Request Syntax

Request

Request Header

Request Body

Response

Response Header

Response Body

Practical Example

Request

Response

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