D'autres exemples de AWS SDK sont disponibles dans le référentiel [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub . 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 `SearchFacesByImage` avec un AWS SDK ou une CLI Les exemples de code suivants illustrent comment utiliser `SearchFacesByImage`. Pour plus d’informations, voir [Recherche d’un visage (image)](https://docs.aws.amazon.com/rekognition/latest/dg/search-face-with-image-procedure.html). ------ #### [ .NET ] **SDK pour .NET** Il y en a plus à ce sujet 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 search for images matching those /// in a collection. /// public class SearchFacesMatchingImage { public static async Task Main() { string collectionId = "MyCollection"; string bucket = "amzn-s3-demo-bucket"; string photo = "input.jpg"; var rekognitionClient = new AmazonRekognitionClient(); // Get an image object from S3 bucket. var image = new Image() { S3Object = new S3Object() { Bucket = bucket, Name = photo, }, }; var searchFacesByImageRequest = new SearchFacesByImageRequest() { CollectionId = collectionId, Image = image, FaceMatchThreshold = 70F, MaxFaces = 2, }; SearchFacesByImageResponse searchFacesByImageResponse = await rekognitionClient.SearchFacesByImageAsync(searchFacesByImageRequest); Console.WriteLine("Faces matching largest face in image from " + photo); searchFacesByImageResponse.FaceMatches.ForEach(face => { Console.WriteLine($"FaceId: {face.Face.FaceId}, Similarity: {face.Similarity}"); }); } } ``` + Pour plus de détails sur l'API, reportez-vous [SearchFacesByImage](https://docs.aws.amazon.com/goto/DotNetSDKV3/rekognition-2016-06-27/SearchFacesByImage)à la section *Référence des AWS SDK pour .NET API*. ------ #### [ CLI ] **AWS CLI** **Pour rechercher les visages d’une collection qui correspondent au visage le plus grand d’une image** La commande `search-faces-by-image` suivante recherche les visages d’une collection qui correspondent au visage le plus grand de l’image spécifiée : ``` aws rekognition search-faces-by-image \ --image '{"S3Object":{"Bucket":"MyImageS3Bucket","Name":"ExamplePerson.jpg"}}' \ --collection-id MyFaceImageCollection { "SearchedFaceBoundingBox": { "Width": 0.18562500178813934, "Top": 0.1618015021085739, "Left": 0.5575000047683716, "Height": 0.24770642817020416 }, "SearchedFaceConfidence": 99.993408203125, "FaceMatches": [ { "Face": { "BoundingBox": { "Width": 0.18562500178813934, "Top": 0.1618019938468933, "Left": 0.5575000047683716, "Height": 0.24770599603652954 }, "FaceId": "ce7ed422-2132-4a11-ab14-06c5c410f29f", "ExternalImageId": "example-image.jpg", "Confidence": 99.99340057373047, "ImageId": "8d67061e-90d2-598f-9fbd-29c8497039c0" }, "Similarity": 99.97913360595703 }, { "Face": { "BoundingBox": { "Width": 0.18562500178813934, "Top": 0.1618019938468933, "Left": 0.5575000047683716, "Height": 0.24770599603652954 }, "FaceId": "13692fe4-990a-4679-b14a-5ac23d135eab", "ExternalImageId": "image3.jpg", "Confidence": 99.99340057373047, "ImageId": "8df18239-9ad1-5acd-a46a-6581ff98f51b" }, "Similarity": 99.97913360595703 }, { "Face": { "BoundingBox": { "Width": 0.41499999165534973, "Top": 0.09187500178813934, "Left": 0.28083300590515137, "Height": 0.3112500011920929 }, "FaceId": "8d3cfc70-4ba8-4b36-9644-90fba29c2dac", "ExternalImageId": "image2.jpg", "Confidence": 99.99769592285156, "ImageId": "a294da46-2cb1-5cc4-9045-61d7ca567662" }, "Similarity": 99.18069458007812 }, { "Face": { "BoundingBox": { "Width": 0.48166701197624207, "Top": 0.20999999344348907, "Left": 0.21250000596046448, "Height": 0.36125001311302185 }, "FaceId": "bd4ceb4d-9acc-4ab7-8ef8-1c2d2ba0a66a", "ExternalImageId": "image1.jpg", "Confidence": 99.99949645996094, "ImageId": "5e1a7588-e5a0-5ee3-bd00-c642518dfe3a" }, "Similarity": 98.66607666015625 }, { "Face": { "BoundingBox": { "Width": 0.5349419713020325, "Top": 0.29124999046325684, "Left": 0.16389399766921997, "Height": 0.40187498927116394 }, "FaceId": "745f7509-b1fa-44e0-8b95-367b1359638a", "ExternalImageId": "image9.jpg", "Confidence": 99.99979400634766, "ImageId": "67a34327-48d1-5179-b042-01e52ccfeada" }, "Similarity": 98.24278259277344 }, { "Face": { "BoundingBox": { "Width": 0.5307819843292236, "Top": 0.2862499952316284, "Left": 0.1564060002565384, "Height": 0.3987500071525574 }, "FaceId": "2eb5f3fd-e2a9-4b1c-a89f-afa0a518fe06", "ExternalImageId": "image10.jpg", "Confidence": 99.99970245361328, "ImageId": "3c314792-197d-528d-bbb6-798ed012c150" }, "Similarity": 98.10665893554688 }, { "Face": { "BoundingBox": { "Width": 0.5074880123138428, "Top": 0.3774999976158142, "Left": 0.18302799761295319, "Height": 0.3812499940395355 }, "FaceId": "086261e8-6deb-4bc0-ac73-ab22323cc38d", "ExternalImageId": "image6.jpg", "Confidence": 99.99930572509766, "ImageId": "ae1593b0-a8f6-5e24-a306-abf529e276fa" }, "Similarity": 98.10526275634766 }, { "Face": { "BoundingBox": { "Width": 0.5574039816856384, "Top": 0.37187498807907104, "Left": 0.14559100568294525, "Height": 0.4181250035762787 }, "FaceId": "11c4bd3c-19c5-4eb8-aecc-24feb93a26e1", "ExternalImageId": "image5.jpg", "Confidence": 99.99960327148438, "ImageId": "80739b4d-883f-5b78-97cf-5124038e26b9" }, "Similarity": 97.94659423828125 }, { "Face": { "BoundingBox": { "Width": 0.5773710012435913, "Top": 0.34437501430511475, "Left": 0.12396000325679779, "Height": 0.4337500035762787 }, "FaceId": "57189455-42b0-4839-a86c-abda48b13174", "ExternalImageId": "image8.jpg", "Confidence": 100.0, "ImageId": "0aff2f37-e7a2-5dbc-a3a3-4ef6ec18eaa0" }, "Similarity": 97.93476867675781 } ], "FaceModelVersion": "3.0" } ``` Pour plus d’informations, consultez [Recherche d’un visage à l’aide de son image](https://docs.aws.amazon.com/rekognition/latest/dg/search-face-with-image-procedure.html) dans le *Guide du développeur Amazon Rekognition*. + Pour plus de détails sur l'API, voir [SearchFacesByImage](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/rekognition/search-faces-by-image.html)la section *Référence des AWS CLI commandes*. ------ #### [ Java ] **SDK pour Java 2.x** Il y en a plus à ce sujet 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.SearchFacesRequest; import software.amazon.awssdk.services.rekognition.model.SearchFacesResponse; import software.amazon.awssdk.services.rekognition.model.FaceMatch; 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 SearchFaceMatchingIdCollection { public static void main(String[] args) { final String usage = """ Usage: Where: collectionId - The id of the collection. \s sourceImage - The path to the image (for example, C:\\AWS\\pic1.png).\s """; if (args.length != 2) { System.out.println(usage); System.exit(1); } String collectionId = args[0]; String faceId = args[1]; Region region = Region.US_WEST_2; RekognitionClient rekClient = RekognitionClient.builder() .region(region) .build(); System.out.println("Searching for a face in a collections"); searchFacebyId(rekClient, collectionId, faceId); rekClient.close(); } public static void searchFacebyId(RekognitionClient rekClient, String collectionId, String faceId) { try { SearchFacesRequest searchFacesRequest = SearchFacesRequest.builder() .collectionId(collectionId) .faceId(faceId) .faceMatchThreshold(70F) .maxFaces(2) .build(); SearchFacesResponse imageResponse = rekClient.searchFaces(searchFacesRequest); System.out.println("Faces matching in the collection"); List faceImageMatches = imageResponse.faceMatches(); for (FaceMatch face : faceImageMatches) { System.out.println("The similarity level is " + face.similarity()); System.out.println(); } } catch (RekognitionException e) { System.out.println(e.getMessage()); System.exit(1); } } } ``` + Pour plus de détails sur l'API, reportez-vous [SearchFacesByImage](https://docs.aws.amazon.com/goto/SdkForJavaV2/rekognition-2016-06-27/SearchFacesByImage)à la section *Référence des AWS SDK for Java 2.x API*. ------ #### [ Python ] **Kit SDK for Python (Boto3)** Il y en a plus à ce sujet 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 search_faces_by_image(self, image, threshold, max_faces): """ Searches for faces in the collection that match the largest face in the reference image. :param image: The image that contains the reference face to search for. :param threshold: The match confidence must be greater than this value for a face to be included in the results. :param max_faces: The maximum number of faces to return. :return: A tuple. The first element is the face found in the reference image. The second element is the list of matching faces found in the collection. """ try: response = self.rekognition_client.search_faces_by_image( CollectionId=self.collection_id, Image=image.image, FaceMatchThreshold=threshold, MaxFaces=max_faces, ) image_face = RekognitionFace( { "BoundingBox": response["SearchedFaceBoundingBox"], "Confidence": response["SearchedFaceConfidence"], } ) collection_faces = [ RekognitionFace(face["Face"]) for face in response["FaceMatches"] ] logger.info( "Found %s faces in the collection that match the largest " "face in %s.", len(collection_faces), image.image_name, ) except ClientError: logger.exception( "Couldn't search for faces in %s that match %s.", self.collection_id, image.image_name, ) raise else: return image_face, collection_faces ``` + Pour plus de détails sur l'API, consultez [SearchFacesByImage](https://docs.aws.amazon.com/goto/boto3/rekognition-2016-06-27/SearchFacesByImage)le *AWS manuel de référence de l'API SDK for Python (Boto3*). ------ #### [ SAP ABAP ] **Kit SDK pour SAP ABAP** Il y en a plus à ce sujet 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. " Create S3 object reference for the image DATA(lo_s3object) = NEW /aws1/cl_reks3object( iv_bucket = iv_s3_bucket iv_name = iv_s3_key ). " Create image object DATA(lo_image) = NEW /aws1/cl_rekimage( io_s3object = lo_s3object ). " Search for matching faces oo_result = lo_rek->searchfacesbyimage( iv_collectionid = iv_collection_id io_image = lo_image iv_facematchthreshold = iv_threshold iv_maxfaces = iv_max_faces ). DATA(lt_face_matches) = oo_result->get_facematches( ). DATA(lv_match_count) = lines( lt_face_matches ). DATA(lv_msg4) = |Face search completed: { lv_match_count } match(es) found.|. MESSAGE lv_msg4 TYPE 'I'. CATCH /aws1/cx_rekresourcenotfoundex. MESSAGE 'Collection not found.' TYPE 'E'. CATCH /aws1/cx_rekinvalids3objectex. MESSAGE 'Invalid S3 object.' TYPE 'E'. CATCH /aws1/cx_rekinvalidparameterex. MESSAGE 'Invalid parameter value.' TYPE 'E'. ENDTRY. ``` + Pour plus de détails sur l'API, reportez-vous [SearchFacesByImage](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*. ------