文件範例儲存庫中有更多 AWS SDK可用的範例。 AWS SDK
本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。
DescribeCollection
搭配 AWS SDK或 使用 CLI
下列程式碼範例示範如何使用 DescribeCollection
。
如需詳細資訊,請參閱描述集合。
- .NET
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- AWS SDK for .NET
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注意
還有更多 。 GitHub尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 using System; using System.Threading.Tasks; using Amazon.Rekognition; using Amazon.Rekognition.Model; /// <summary> /// Uses the Amazon Rekognition Service to describe the contents of a /// collection. /// </summary> public class DescribeCollection { public static async Task Main() { var rekognitionClient = new AmazonRekognitionClient(); string collectionId = "MyCollection"; Console.WriteLine($"Describing collection: {collectionId}"); var describeCollectionRequest = new DescribeCollectionRequest() { CollectionId = collectionId, }; var describeCollectionResponse = await rekognitionClient.DescribeCollectionAsync(describeCollectionRequest); Console.WriteLine($"Collection ARN: {describeCollectionResponse.CollectionARN}"); Console.WriteLine($"Face count: {describeCollectionResponse.FaceCount}"); Console.WriteLine($"Face model version: {describeCollectionResponse.FaceModelVersion}"); Console.WriteLine($"Created: {describeCollectionResponse.CreationTimestamp}"); } }
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如需API詳細資訊,請參閱 參考 DescribeCollection中的 。 AWS SDK for .NET API
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- CLI
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- AWS CLI
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描述集合
下列
describe-collection
範例顯示指定集合的詳細資訊。aws rekognition describe-collection \ --collection-id
MyCollection
輸出:
{ "FaceCount": 200, "CreationTimestamp": 1569444828.274, "CollectionARN": "arn:aws:rekognition:us-west-2:123456789012:collection/MyCollection", "FaceModelVersion": "4.0" }
如需詳細資訊,請參閱 Amazon Rekognition 開發人員指南 中的描述集合。
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如需API詳細資訊,請參閱 命令參考 DescribeCollection
中的 。 AWS CLI
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- Java
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- SDK 適用於 Java 2.x
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注意
還有更多 。 GitHub尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.rekognition.RekognitionClient; import software.amazon.awssdk.services.rekognition.model.DescribeCollectionRequest; import software.amazon.awssdk.services.rekognition.model.DescribeCollectionResponse; import software.amazon.awssdk.services.rekognition.model.RekognitionException; /** * Before running this Java V2 code example, set up your development * environment, including your credentials. * * For more information, see the following documentation topic: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class DescribeCollection { public static void main(String[] args) { final String usage = """ Usage: <collectionName> Where: collectionName - The name of the Amazon Rekognition collection.\s """; if (args.length != 1) { System.out.println(usage); System.exit(1); } String collectionName = args[0]; Region region = Region.US_EAST_1; RekognitionClient rekClient = RekognitionClient.builder() .region(region) .build(); describeColl(rekClient, collectionName); rekClient.close(); } public static void describeColl(RekognitionClient rekClient, String collectionName) { try { DescribeCollectionRequest describeCollectionRequest = DescribeCollectionRequest.builder() .collectionId(collectionName) .build(); DescribeCollectionResponse describeCollectionResponse = rekClient .describeCollection(describeCollectionRequest); System.out.println("Collection Arn : " + describeCollectionResponse.collectionARN()); System.out.println("Created : " + describeCollectionResponse.creationTimestamp().toString()); } catch (RekognitionException e) { System.out.println(e.getMessage()); System.exit(1); } } }
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如需API詳細資訊,請參閱 參考 DescribeCollection中的 。 AWS SDK for Java 2.x API
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- Kotlin
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- SDK 適用於 Kotlin
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注意
還有更多 。 GitHub尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 suspend fun describeColl(collectionName: String) { val request = DescribeCollectionRequest { collectionId = collectionName } RekognitionClient { region = "us-east-1" }.use { rekClient -> val response = rekClient.describeCollection(request) println("The collection Arn is ${response.collectionArn}") println("The collection contains this many faces ${response.faceCount}") } }
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如需API詳細資訊,請參閱DescribeCollection
中的 AWS SDK for Kotlin API參考。
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- Python
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- SDK for Python (Boto3)
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注意
還有更多 。 GitHub尋找完整範例,並了解如何在 AWS 程式碼範例儲存庫
中設定和執行。 class RekognitionCollection: """ Encapsulates an Amazon Rekognition collection. This class is a thin wrapper around parts of the Boto3 Amazon Rekognition API. """ def __init__(self, collection, rekognition_client): """ Initializes a collection object. :param collection: Collection data in the format returned by a call to create_collection. :param rekognition_client: A Boto3 Rekognition client. """ self.collection_id = collection["CollectionId"] self.collection_arn, self.face_count, self.created = self._unpack_collection( collection ) self.rekognition_client = rekognition_client @staticmethod def _unpack_collection(collection): """ Unpacks optional parts of a collection that can be returned by describe_collection. :param collection: The collection data. :return: A tuple of the data in the collection. """ return ( collection.get("CollectionArn"), collection.get("FaceCount", 0), collection.get("CreationTimestamp"), ) def describe_collection(self): """ Gets data about the collection from the Amazon Rekognition service. :return: The collection rendered as a dict. """ try: response = self.rekognition_client.describe_collection( CollectionId=self.collection_id ) # Work around capitalization of Arn vs. ARN response["CollectionArn"] = response.get("CollectionARN") ( self.collection_arn, self.face_count, self.created, ) = self._unpack_collection(response) logger.info("Got data for collection %s.", self.collection_id) except ClientError: logger.exception("Couldn't get data for collection %s.", self.collection_id) raise else: return self.to_dict()
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如需API詳細資訊,請參閱 DescribeCollection 中的 AWS SDK for Python (Boto3) API參考 。
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DeleteFaces
DetectFaces