Code Recognition
This API reads quick response (QR) codes and bar codes to obtain information included in the codes, assisting in the provision of related services.
SDK Download
Development Guide
- Capability Introduction
- Scenarios
- Description
- Guidance
Capability Introduction
Information identification, app integration
This API provides code recognition service, by identifying QR and bar codes, sharing the information in them with the system, and providing service framework based on the information. The service framework can be integrated into a wide range of apps. This API can be used to parse QR codes and bar codes in 11 scenarios, including Wi-Fi and SMS messaging. It provides effective code detection and detection-result-based service capabilities for various programs and apps.
Scenarios
Image parsing, barcode reading
This API parses QR and bar codes in images, and can be applied in diverse scanning scenarios in applications.
Code scanning-based payments
This function is used in mobile services, such as payment app scanning.
Image extraction via code scanning
Code information is extracted when users scan the code, and related services are provided, according to the code recognition results.
Description
Request
Copy
BarcodeDetector detector = new BarcodeDetector(getApplicationContext());
Frame frame = new Frame();
frame.setBitmap(bitmap);
JSONObject jsonObject = detector.detect(frame,null);
Response
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{
"resultCode": 0,
"barcode": "[{\"contentTypes\":[11],
\
"iSBN\":{\"isbn\":\"9787540746445\"}}]"
}
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Access preparation
Preparation for access, such as registration, authentication, and agreement signing
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API description
Interface parameter definition, description, restrictions, and constraints
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FAQ
1Can I call the faceCompare() method without calling the prepare() method of the API?
Yes, you can. The engine is started by default in the faceCompare() method. If the engine has already been started, it will not restart.
2When should I call the release() method?
The release() method will uninstall a model that has been loaded to the NPU chip. If the app is no longer using face detection, uninstall the model in a timely manner to free up resources.
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Code Recognition
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