Les traductions sont fournies par des outils de traduction automatique. En cas de conflit entre le contenu d'une traduction et celui de la version originale en anglais, la version anglaise prévaudra. # Utilisation `ListFaces` avec un AWS SDK ou une CLI Les exemples de code suivants illustrent comment utiliser `ListFaces`. Pour plus d'informations, consultez [Répertoriage de visages d'une collection](https://docs.aws.amazon.com/rekognition/latest/dg/list-faces-in-collection-procedure.html). ------ #### [ .NET ] **SDK pour .NET** Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le [référentiel d’exemples de code AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/dotnetv3/Rekognition/#code-examples). ``` using System; using System.Threading.Tasks; using Amazon.Rekognition; using Amazon.Rekognition.Model; /// /// Uses the Amazon Rekognition Service to retrieve the list of faces /// stored in a collection. /// public class ListFaces { public static async Task Main() { string collectionId = "MyCollection2"; var rekognitionClient = new AmazonRekognitionClient(); var listFacesResponse = new ListFacesResponse(); Console.WriteLine($"Faces in collection {collectionId}"); var listFacesRequest = new ListFacesRequest { CollectionId = collectionId, MaxResults = 1, }; do { listFacesResponse = await rekognitionClient.ListFacesAsync(listFacesRequest); listFacesResponse.Faces.ForEach(face => { Console.WriteLine(face.FaceId); }); listFacesRequest.NextToken = listFacesResponse.NextToken; } while (!string.IsNullOrEmpty(listFacesResponse.NextToken)); } } ``` + Pour plus de détails sur l'API, reportez-vous [ListFaces](https://docs.aws.amazon.com/goto/DotNetSDKV3/rekognition-2016-06-27/ListFaces)à la section *Référence des AWS SDK pour .NET API*. ------ #### [ CLI ] **AWS CLI** **Pour répertorier les visages d’une collection** La commande `list-faces` suivante répertorie les visages dans la collection spécifiée. ``` aws rekognition list-faces \ --collection-id {{MyCollection}} ``` Sortie : ``` { "FaceModelVersion": "3.0", "Faces": [ { "BoundingBox": { "Width": 0.5216310024261475, "Top": 0.3256250023841858, "Left": 0.13394300639629364, "Height": 0.3918749988079071 }, "FaceId": "0040279c-0178-436e-b70a-e61b074e96b0", "ExternalImageId": "image1.jpg", "Confidence": 100.0, "ImageId": "f976e487-3719-5e2d-be8b-ea2724c26991" }, { "BoundingBox": { "Width": 0.5074880123138428, "Top": 0.3774999976158142, "Left": 0.18302799761295319, "Height": 0.3812499940395355 }, "FaceId": "086261e8-6deb-4bc0-ac73-ab22323cc38d", "ExternalImageId": "image2.jpg", "Confidence": 99.99930572509766, "ImageId": "ae1593b0-a8f6-5e24-a306-abf529e276fa" }, { "BoundingBox": { "Width": 0.5574039816856384, "Top": 0.37187498807907104, "Left": 0.14559100568294525, "Height": 0.4181250035762787 }, "FaceId": "11c4bd3c-19c5-4eb8-aecc-24feb93a26e1", "ExternalImageId": "image3.jpg", "Confidence": 99.99960327148438, "ImageId": "80739b4d-883f-5b78-97cf-5124038e26b9" }, { "BoundingBox": { "Width": 0.18562500178813934, "Top": 0.1618019938468933, "Left": 0.5575000047683716, "Height": 0.24770599603652954 }, "FaceId": "13692fe4-990a-4679-b14a-5ac23d135eab", "ExternalImageId": "image4.jpg", "Confidence": 99.99340057373047, "ImageId": "8df18239-9ad1-5acd-a46a-6581ff98f51b" }, { "BoundingBox": { "Width": 0.5307819843292236, "Top": 0.2862499952316284, "Left": 0.1564060002565384, "Height": 0.3987500071525574 }, "FaceId": "2eb5f3fd-e2a9-4b1c-a89f-afa0a518fe06", "ExternalImageId": "image5.jpg", "Confidence": 99.99970245361328, "ImageId": "3c314792-197d-528d-bbb6-798ed012c150" }, { "BoundingBox": { "Width": 0.5773710012435913, "Top": 0.34437501430511475, "Left": 0.12396000325679779, "Height": 0.4337500035762787 }, "FaceId": "57189455-42b0-4839-a86c-abda48b13174", "ExternalImageId": "image6.jpg", "Confidence": 100.0, "ImageId": "0aff2f37-e7a2-5dbc-a3a3-4ef6ec18eaa0" }, { "BoundingBox": { "Width": 0.5349419713020325, "Top": 0.29124999046325684, "Left": 0.16389399766921997, "Height": 0.40187498927116394 }, "FaceId": "745f7509-b1fa-44e0-8b95-367b1359638a", "ExternalImageId": "image7.jpg", "Confidence": 99.99979400634766, "ImageId": "67a34327-48d1-5179-b042-01e52ccfeada" }, { "BoundingBox": { "Width": 0.41499999165534973, "Top": 0.09187500178813934, "Left": 0.28083300590515137, "Height": 0.3112500011920929 }, "FaceId": "8d3cfc70-4ba8-4b36-9644-90fba29c2dac", "ExternalImageId": "image8.jpg", "Confidence": 99.99769592285156, "ImageId": "a294da46-2cb1-5cc4-9045-61d7ca567662" }, { "BoundingBox": { "Width": 0.48166701197624207, "Top": 0.20999999344348907, "Left": 0.21250000596046448, "Height": 0.36125001311302185 }, "FaceId": "bd4ceb4d-9acc-4ab7-8ef8-1c2d2ba0a66a", "ExternalImageId": "image9.jpg", "Confidence": 99.99949645996094, "ImageId": "5e1a7588-e5a0-5ee3-bd00-c642518dfe3a" }, { "BoundingBox": { "Width": 0.18562500178813934, "Top": 0.1618019938468933, "Left": 0.5575000047683716, "Height": 0.24770599603652954 }, "FaceId": "ce7ed422-2132-4a11-ab14-06c5c410f29f", "ExternalImageId": "image10.jpg", "Confidence": 99.99340057373047, "ImageId": "8d67061e-90d2-598f-9fbd-29c8497039c0" } ] } ``` Pour plus d’informations, consultez [Création d’une liste de visages d’une collection](https://docs.aws.amazon.com/rekognition/latest/dg/list-faces-in-collection-procedure.html) dans le *Guide du développeur Amazon Rekognition*. + Pour plus de détails sur l'API, reportez-vous [ListFaces](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/rekognition/list-faces.html)à la section *Référence des AWS CLI commandes*. ------ #### [ Java ] **SDK pour Java 2.x** Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le [référentiel d’exemples de code AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javav2/example_code/rekognition/#code-examples). ``` import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.rekognition.RekognitionClient; import software.amazon.awssdk.services.rekognition.model.Face; import software.amazon.awssdk.services.rekognition.model.ListFacesRequest; import software.amazon.awssdk.services.rekognition.model.ListFacesResponse; import software.amazon.awssdk.services.rekognition.model.RekognitionException; import java.util.List; /** * 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 ListFacesInCollection { public static void main(String[] args) { final String usage = """ Usage: Where: collectionId - The name of the collection.\s """; if (args.length < 1) { System.out.println(usage); System.exit(1); } String collectionId = args[0]; Region region = Region.US_EAST_1; RekognitionClient rekClient = RekognitionClient.builder() .region(region) .build(); System.out.println("Faces in collection " + collectionId); listFacesCollection(rekClient, collectionId); rekClient.close(); } public static void listFacesCollection(RekognitionClient rekClient, String collectionId) { try { ListFacesRequest facesRequest = ListFacesRequest.builder() .collectionId(collectionId) .maxResults(10) .build(); ListFacesResponse facesResponse = rekClient.listFaces(facesRequest); List faces = facesResponse.faces(); for (Face face : faces) { System.out.println("Confidence level there is a face: " + face.confidence()); System.out.println("The face Id value is " + face.faceId()); } } catch (RekognitionException e) { System.out.println(e.getMessage()); System.exit(1); } } } ``` + Pour plus de détails sur l'API, reportez-vous [ListFaces](https://docs.aws.amazon.com/goto/SdkForJavaV2/rekognition-2016-06-27/ListFaces)à la section *Référence des AWS SDK for Java 2.x API*. ------ #### [ Kotlin ] **SDK pour Kotlin** Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le [référentiel d’exemples de code AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/kotlin/services/rekognition#code-examples). ``` suspend fun listFacesCollection(collectionIdVal: String?) { val request = ListFacesRequest { collectionId = collectionIdVal maxResults = 10 } RekognitionClient.fromEnvironment { region = "us-east-1" }.use { rekClient -> val response = rekClient.listFaces(request) response.faces?.forEach { face -> println("Confidence level there is a face: ${face.confidence}") println("The face Id value is ${face.faceId}") } } } ``` + Pour plus de détails sur l'API, reportez-vous [ListFaces](https://sdk.amazonaws.com/kotlin/api/latest/index.html)à la section *AWS SDK pour la référence de l'API Kotlin*. ------ #### [ Python ] **Kit SDK for Python (Boto3)** Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le [référentiel d’exemples de code AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/rekognition#code-examples). ``` 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 list_faces(self, max_results): """ Lists the faces currently indexed in the collection. :param max_results: The maximum number of faces to return. :return: The list of faces in the collection. """ try: response = self.rekognition_client.list_faces( CollectionId=self.collection_id, MaxResults=max_results ) faces = [RekognitionFace(face) for face in response["Faces"]] logger.info( "Found %s faces in collection %s.", len(faces), self.collection_id ) except ClientError: logger.exception( "Couldn't list faces in collection %s.", self.collection_id ) raise else: return faces ``` + Pour plus de détails sur l'API, consultez [ListFaces](https://docs.aws.amazon.com/goto/boto3/rekognition-2016-06-27/ListFaces)le *AWS manuel de référence de l'API SDK for Python (Boto3*). ------ #### [ SAP ABAP ] **Kit SDK pour SAP ABAP** Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le [référentiel d’exemples de code AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/rek#code-examples). ``` TRY. oo_result = lo_rek->listfaces( iv_collectionid = iv_collection_id iv_maxresults = iv_max_results ). DATA(lt_faces) = oo_result->get_faces( ). DATA(lv_face_count2) = lines( lt_faces ). DATA(lv_msg3) = |{ lv_face_count2 } face(s) found in collection.|. MESSAGE lv_msg3 TYPE 'I'. CATCH /aws1/cx_rekresourcenotfoundex. MESSAGE 'Collection not found.' TYPE 'E'. CATCH /aws1/cx_rekinvalidparameterex. MESSAGE 'Invalid parameter value.' TYPE 'E'. ENDTRY. ``` + Pour plus de détails sur l'API, reportez-vous [ListFaces](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)à la section de référence du *AWS SDK pour l'API SAP ABAP*. ------ Pour obtenir la liste complète des guides de développement du AWS SDK et des exemples de code, consultez[Utilisation de la Rekognition avec un SDK AWS](sdk-general-information-section.md). Cette rubrique comprend également des informations sur le démarrage et sur les versions précédentes du kit SDK.