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- What's New
- Function Overview
- Product Bulletin
- Service Overview
-
Billing
- Billing Overview
- Billing Modes
- Billing Items
- Billing Examples
- Billing Mode Changes
- Renewing Subscriptions
- Bills
- Arrears
- Billing Termination
- Cost Management
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Billing FAQ
- Why Do I Get Additional Charges or Arrears After Purchasing a Package?
- Why Can I Still Call the Service and Incur Arrears When My Account Balance Is Zero?
- Why Do I Get Additional Charges or Arrears After Unsubscribing from an OCR Service?
- Can I Refund a Package After I Buy It?
- How Is Billing Handled When a Package Is Used Up? And How Can I Check the Remaining Quota and Receive Alerts for My Package?
- How Does a Member Account Use a Package Purchased by an Enterprise Master Account?
- What Is Fee Deduction Order for Multiple Packages?
- What are Grace Period and Retention Period?
- What Is Considered Valid Billing for OCR?
- Can Different API Packages Be Shared?
- Can OCR Be Charged by Project?
- Getting Started
- User Guide
- SDK Reference
- API Reference
-
FAQs
- Subscription
-
Token-based Authentication
- What Are the Username, Domain Name, and Project Name in the Token Message Body?
- Why Is the Error Message "The account is locked." Displayed?
- Why Is the Error Message "The username or password is wrong." Displayed?
- Why Does the Token Retrieval Process Return a 401 Status Code?
- Why Does the Token Fail to Be Obtained When I Use Postman to Call an ORC API?
- Why Don't I Have Programming Access Permissions?
- Why Does the Header Overflow When I Use Postman to Call an OCR API?
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API
- How Do I View the API Usage?
- Why Is the Actual Number of API Calls Inconsistent with the Record Displayed on the Management Console?
- Does OCR Support Batch Processing?
- Can the OCR Results Be Converted into Word, TXT, or PDF Files?
- How Do I Obtain the Base64 Code of an Image?
- What Is the Number of Concurrent OCR API Calls?
- How Do I Use OCR APIs?
- Can the Region Where OCR Is Called Be Different from the Region Where OBS Resources Are Located?
- Can the Input Data of OCR Be Stored Locally?
- How Do I Improve the Recognition Speed?
- How Do I Convert a PDF to an Image?
- Can OCR Read Images from Non-Huawei Cloud Storage?
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SDK
- Do OCR SDKs Need to Be Purchased?
- Do OCR SDKs Need Maven to Manage Dependency Packages?
- How Do I Change the Response Type in Returned Results?
- How Can I Fix an SSL Configuration Error?
- How Can I Fix a "connect timed out" Error?
- Why Does the Project ID Fail to Be Obtained?
- What Should I Do if I Forget My AK and SK?
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Error Code
- Why Do I Fail to Call an OCR API?
- How Do I Handle the Error APIG.0301?
- How Do I Handle the Error APIG.0201?
- How Do I Handle the Error APIG.0101?
- How Do I Handle the Error APIG.0106?
- How Do I Handle the Error APIG.0308?
- How Do I Handle the Error ModelArts.0212?
- How Do I Handle the Error ModelArts.4603 or ModelArts.4704?
- How Do I Handle the Error ModelArts.4204?
- Permissions
- Data Security and Privacy
- Regions and AZs
- General Consulting
- Videos
- Glossary
- More Documents
- General Reference
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Concepts
- Account
An account is created upon successful registration with Huawei Cloud and has full access permissions for all of its cloud services and resources. It can be used to reset user passwords and grant user permissions. The account is a payment entity. Do not directly use an account for routine management, but create users and assign them permissions for that.
- User
A user is created on in IAM using an account to use cloud services. Each user has its own identity credentials (password and access keys).
An IAM user can view the account ID and user ID on the My Credentials page of the console. The account name, username, and password will be required for API authentication.
- Region
Regions are divided based on geographical location and network latency. Public services, such as Elastic Cloud Server (ECS), Elastic Volume Service (EVS), Object Storage Service (OBS), Virtual Private Cloud (VPC), Elastic IP (EIP), and Image Management Service (IMS), are accessible within the same region. Regions are classified as universal regions and dedicated regions. A universal region provides universal cloud services for common tenants. A dedicated region provides specific services for specific tenants.
- AZ
An AZ contains one or more physical data centers. It has independent cooling, fire extinguishing, moisture-proof, and electricity facilities. Within an AZ, computing, network, storage, and other resources are logically divided into multiple clusters. AZs within a region are interconnected using high-speed optical fibers to allow you to build cross-AZ high-availability systems.
- Project
Projects isolate resources (including compute, storage, and network resources) across physical regions. A default project is provided for each Huawei Cloud region, and subprojects can be created under each default project. Users can be granted permissions to access all resources in a specific project. For more refined access control, create subprojects under a project and purchase resources in the subprojects. Users can then be assigned permissions to access specific resources in the subprojects.
Figure 1 Project isolation model
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