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Intelligent Media Management:DetectImageBodies

Last Updated:Aug 28, 2026

Detects human bodies in an image and returns confidence scores and bounding boxes.

Operation description

  • Before you call this operation, make sure you have created an IMM project by calling CreateProject.

  • Supported image encoding formats are listed in Limits on images.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

imm:DetectImageBodies

none

*Project

acs:imm:{#regionId}:{#accountId}:project/{#ProjectName}

None None

Request parameters

Parameter

Type

Required

Description

Example

ProjectName

string

Yes

The project name, which is returned by the CreateProject operation.

test-project

SourceURI

string

No

The OSS URI of the source image.

Format: oss://${Bucket}/${Object}. ${Bucket}: name of an OSS bucket in the same region as the project. ${Object}: full path to the file, including the extension.

oss://test-bucket/test-object.jpg

Sensitivity

number

No

The detection sensitivity. Valid values: 0 to 1. Default value: 0.6. Higher values detect more image details.

0.6

CredentialConfig CredentialConfig

No

If you have no special requirements, leave this parameter empty.

The authorization chain settings. Use authorization chains to access resources of other entities.

Response elements

Element

Type

Description

Example

object

The response parameters.

Bodies

array

The human bodies.

Body

The human body details.

RequestId

string

The request ID.

501339F9-4B70-0CE2-AB8C-866C********

Examples

Success response

JSON format

{
  "Bodies": [
    {
      "Confidence": 0.82,
      "Boundary": {
        "Width": 200,
        "Height": 300,
        "Left": 10,
        "Top": 30,
        "Polygon": [
          {
            "X": 10,
            "Y": 10
          }
        ]
      }
    }
  ],
  "RequestId": "501339F9-4B70-0CE2-AB8C-866C********"
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.