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Face Recognition Service
Face Recognition Service
- What's New
- Service Overview
- Getting Started
- SDK Reference
- API Reference
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FAQs
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General Consulting
- How Can Multiple Faces Be Recognized in an Image with Multiple Faces?
- Can Certificate Photos Be Used for Facial Recognition?
- How Do I Deal with Unauthorization Issues?
- Why Do Recognition Errors Occur?
- What Causes the Low Pass Rate in Face Recognition?
- Why Is the Request Response so Slow?
- What Is the Limit for Free Calls to the Face Detection API?
- How Do I Disable a Service?
- Are There SDKs Available for Mobile Phones (Android and iOS) in FRS?
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APIs
- How Can I Use FRS APIs?
- What Do I Do If Error FRS.0022 Is Reported When Images Are Accessed on OBS?
- How Do I Obtain the Correct Endpoint?
- How Do I Obtain the Base64 Code of an Image?
- How Do I Set the top_n Parameter in the Face Retrieval API?
- Why Is the Data Returned by FRS Empty?
- What Is the Minimum Bandwidth Needed for FRS?
- How Do I Obtain the URL of the Most Recent Image in an OBS Bucket?
- Can I Query Facial Images Uploaded for Face Recognition?
- Error Codes
- Region and AZ FAQs
- Permissions
- Data Security
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General Consulting
- Glossary
- General Reference
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Applying for FRS
Before using the APIs, you must apply for FRS as follows:
Procedure
- To subscribe to and use FRS APIs for the first time, contact sales to get assistance.
- Select the sub-service to be enabled based on service requirements, for example, Face Detection, and click Enable Service on the right.
- Face Recognition may need to use the data stored on OBS, so you need to authorize Face Recognition to access data stored on OBS. In the left navigation pane, choose Authorization, and click Agree. The Agree button changes to Authorized.
- During OBS authorization, if the system shows that the number of agencies reaches the upper limit, log in to the Identity and Access Management service console to delete or create agencies.
- When the service status is Enabled, you can call the APIs.
Figure 1 Service authorization

Parent topic: Calling APIs
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