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DocumentationCloud Object StorageSDK DocumentationPython SDKContent RecognitionImage QR Code
Image QR Code
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Last updated: 2024-02-04 16:24:44
Image QR Code
Last updated: 2024-02-04 16:24:44
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Overview

This document provides an overview of APIs and SDK code samples for image QR codes.
API
Description
QR code recognition
Recognizes the location and content of valid QR codes in an image, outputs the text information (URL or text) contained in the QR codes, and pixelates the recognized QR codes.

QR Code Recognition

The QR code recognition feature recognizes the location and content of valid QR codes in an image, outputs the text information (URL or text) contained in the QR codes, and pixelates the recognized QR codes.

Recognizing QR code during upload

Feature description

The request for recognizing QR codes during image upload is the same as that used to simply upload a file to COS, except that you need to add the image processing parameter Pic-Operations to the request header.

Sample code

    # Create a COS client
    example_object = 'example_object.jpg'
    with open(example_object, 'rb') as fp:
        opts = '{"is_pic_info":1,"rules":[{"fileid":"format.jpg","rule":"QRcode/cover/0"}]}'
        response,data = client.ci_put_object_from_local_file_and_get_qrcode(
            Bucket='example-bucket-123456789',
            LocalFilePath=example_object,
            Key='example_key',
            EnableMD5=False,
            PicOperations=opts
        )
        # View the response information and read the specified data as needed
        print(response,data)

Parameter description

Parameter
Description
Type
Required
Bucket
Bucket name in the format of BucketName-APPID
String
Yes
LocalFilePath
Image path
String
Yes
Key
Unique identifier of the object in the bucket. For example, if an object's access endpoint is examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com/doc/pic.jpg, its key is doc/pic.jpg.
String
Yes
EnableMD5
Specifies whether the SDK needs to calculate the Content-MD5 checksum. It is disabled by default. The upload will take longer if it is enabled.
Bool
No
PicOperations
CI image processing parameters. For more information, see QR Code Recognition.
String
Yes

Recognizing QR code in the cloud

Feature description

This feature recognizes QR codes in an image stored in the cloud and returns the recognition result.

Sample code

    # Create a COS client
    response,data = client.ci_get_object_qrcode(
        Bucket='example_bucket-123456789',
        Key='example_object',
        Cover=0
    )
    # View the response information and read the specified data as needed
    print(response,data)

Parameter description

Parameter
Description
Type
Required
Bucket
Bucket name in the format of BucketName-APPID
String
Yes
Key
Unique identifier of the object in the bucket. For example, if an object's access endpoint is examplebucket-1250000000.cos.ap-guangzhou.myqcloud.com/doc/pic.jpg, its key is doc/pic.jpg.
String
Yes
Cover
Whether to pixelate QR codes. For more information, see QR Code Recognition.
Int
Yes

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