Content Moderation:AIGC and Forgery Detection Service of Image Moderation 2.0

1. Use case

Content Moderation provides the following custom detection services for AIGC scenarios, such as text-to-image and image-to-image generation:

• AIGC image detection: As technology advances, AI-generated images are becoming increasingly difficult to distinguish from user-generated images. In some business scenarios, you may need to identify which images are AI-generated. To meet this requirement, Content Moderation provides a feature that determines whether an image is AI-generated.

2. Service description

The AIGC and forgery detection capabilities of Image Moderation 2.0 support the following services:

3. Detection capabilities

The AIGC image detection service determines whether an image is generated by AI. An AIGC or user-generated content (UGC) label is returned.

4. Billing

The AIGC and forgery detection service of Image Moderation 2.0 supports the pay-as-you-go billing methods.

Pay-as-you-go

After you activate the Image Moderation V2.0 service, the default billing method is pay-as-you-go. You are billed daily based on your actual usage. If you do not call the service, you are not charged.

5. Integration guide

Step 1: Activate the service

Go to the service activation page to activate the Image Moderation 2.0 service.

After you activate the Image Moderation 2.0 service, the default billing method is pay-as-you-go. Fees are settled daily based on your actual usage. You are not charged if you do not call the service. After you call the API, the system automatically generates bills based on your usage. For more information, see Billing details.

Step 2: Grant permissions to a RAM user

Before you call API operations or use SDKs, you must grant permissions to a RAM user. You must create an AccessKey pair for your Alibaba Cloud account or the RAM user. When you call API operations, you must use the AccessKey pair to complete identity verification. To obtain an AccessKey pair, see Obtain an AccessKey pair.

1. Log on to the RAM console using your Alibaba Cloud account or as a RAM administrator.

2. Create a RAM user. For more information, see Create a RAM user.

3. Grant the AliyunYundunGreenWebFullAccess system policy to the RAM user. For more information, see Grant permissions to a RAM user. After you complete these configurations, you can call the Content Moderation API as the RAM user.

Step 3: Install and integrate an SDK

For more information, see Image Moderation 2.0 SDKs and usage guide. The following table lists the supported regions.

Step 4: Adjust image moderation rules (Optional)

In the Content Moderation console, you can adjust the detection rules for the image moderation service. You can toggle detection scopes, copy a service, configure custom image libraries and vocabularies, and query detection records and usage. For more information, see the Console Operation Guide.

6. API operations

Usage notes

You can call this API to create an image moderation task. For more information about how to construct an HTTP request, see the Access Guide. You can also use a pre-constructed HTTP request. For more information, see the Access Guide.

• API operation: ImageModeration

• Billing information: This is a paid operation. You are billed only for requests that return an HTTP status code of 200. Requests that return other error codes are not billed. For more information about billing methods, see the Billing overview.

• Image requirements:

  • The following image formats are supported: PNG, JPG, JPEG, BMP, WEBP, TIFF, SVG, HEIC (the longest side must be less than 8,192 pixels), GIF (only the first frame is processed), and ICO (only the last image is processed).

  • The image size cannot exceed 20 MB. The height or width cannot exceed 16,384 pixels, and the total number of pixels cannot exceed 250 million. We recommend that you use images with a resolution of at least 200 × 200 pixels to ensure the effectiveness of the detection algorithm.

  • The image download time is limited to 3 seconds. If the download takes longer than 3 seconds, a timeout error is returned.

QPS limits

The queries per second (QPS) limit for this API operation is 100 for each user. If you exceed this limit, API calls are throttled. This may affect your business. Call the operation at a reasonable rate. If you have a high workload, need to scale up urgently, and require a higher QPS limit, contact your business manager.

Debug

Before you start, you can use Alibaba Cloud OpenAPI Explorer to test the or Image Moderation 2.0 API online. You can also view sample code and SDK dependencies to understand how to use the API and its parameters.

Request parameters

For information about the common parameters required in a request, see the Access Guide.

The request body is a JSON struct that contains the following fields:

Table 1. ServiceParameters

Response parameters

Table 2. Data

Table 3. result

Examples

Sample request

{
    "Service": "aigcDetector_global",
    "ServiceParameters": {
        "imageUrl": "https://img.alicdn.com/tfs/TB1U4r9AeH2gK0jSZJnXXaT1FXa-2880-480.png",
        "dataId": "img123****"
    }
}

Sample responses

{
    "Msg": "OK",
    "Code": 200,
    "Data": {
        "DataId": "img123****",
        "Result": [
            {
                "Label": "aigc",
                "Confidence": 81.88,
                "Description": "Suspected to be generated by AIGC"
            }
        ]
    },
    "RequestId": "ABCD1234-1234-1234-1234-1234XYZ"
}

Risk label descriptions

The following table lists the risk labels, their corresponding confidence scores, and their definitions. You can enable or disable each risk label in the Content Moderation console. For some risk labels, you can also configure more specific detection scopes. For more information, see the Console User Guide.

Table 6.Labels supported by AIGC-generated Image Identification (aigcDetector_global)

Code descriptions

The following table describes the meanings of the returned codes. The system charges only for requests that return a code of 200. No fees are charged for other codes.