- AWS Code Sample demonstrates how to list the faces in an Amazon Rekognition collection.

/** * Copyright, Inc. or its affiliates. All Rights Reserved. * * This file is licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. A copy of * the License is located at * * * * This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR * CONDITIONS OF ANY KIND, either express or implied. See the License for the * specific language governing permissions and limitations under the License. */ package com.example.rekognition; import; import; import; import; import; import; import java.util.List; public class ListFacesInCollection { public static void main(String[] args) { final String USAGE = "\n" + "ListFacesInCollection - how to capture faces within a collection of images\n\n" + "Usage: ListFacesInCollection <collectionId>\n\n" + "Where:\n" + "collectionId - the name of the collection) \n\n"; if (args.length < 1) { System.out.println(USAGE); System.exit(1); } // Read the collection ID value String collectionId = args[0]; Region region = Region.US_EAST_2; RekognitionClient rekClient = RekognitionClient.builder() .region(region) .build(); System.out.println("Faces in collection " + collectionId); listFacesCollection(rekClient, collectionId) ; } public static void listFacesCollection(RekognitionClient rekClient, String collectionId ) { try { // Create a ListFacesRequest object ListFacesRequest facesRequest = ListFacesRequest.builder() .collectionId(collectionId) .maxResults(10) .build(); // Invoke the listFaces method ListFacesResponse facesResponse = rekClient.listFaces(facesRequest); // For each face in the collection, print out the confidence level List<Face> faces = facesResponse.faces(); for (Face face: faces) { System.out.println("Confidence level there is a face: "+face.confidence()); } } catch (RekognitionException e) { System.out.println(e.getMessage()); System.exit(1); } } }

Sample Details

Service: Amazon Rekognition

Last tested: 6-10-2020

Author: scmacdon - AWS

Type: full-example