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rekognition-image-java-detect-labels.java

rekognition-image-java-detect-labels.java demonstrates how to detect labels in an image loaded from an S3 Bucket.

/** * Copyright 2010-2019 Amazon.com, 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 * * http://aws.amazon.com/apache2.0/ * * 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 aws.example.rekognition.image; import java.util.List; import com.amazonaws.services.rekognition.model.BoundingBox; import com.amazonaws.services.rekognition.model.DetectLabelsRequest; import com.amazonaws.services.rekognition.model.DetectLabelsResult; import com.amazonaws.services.rekognition.model.Image; import com.amazonaws.services.rekognition.model.Instance; import com.amazonaws.services.rekognition.model.Label; import com.amazonaws.services.rekognition.model.Parent; import com.amazonaws.services.rekognition.model.S3Object; import com.amazonaws.services.rekognition.AmazonRekognition; import com.amazonaws.services.rekognition.AmazonRekognitionClientBuilder; import com.amazonaws.services.rekognition.model.AmazonRekognitionException; public class DetectLabels { public static void main(String[] args) throws Exception { // Change bucket and photo to your S3 Bucket and image. String photo = "photo"; String bucket = "bucket"; AmazonRekognition rekognitionClient = AmazonRekognitionClientBuilder.defaultClient(); DetectLabelsRequest request = new DetectLabelsRequest() .withImage(new Image().withS3Object(new S3Object().withName(photo).withBucket(bucket))) .withMaxLabels(10).withMinConfidence(75F); try { DetectLabelsResult result = rekognitionClient.detectLabels(request); List<Label> labels = result.getLabels(); System.out.println("Detected labels for " + photo + "\n"); for (Label label : labels) { System.out.println("Label: " + label.getName()); System.out.println("Confidence: " + label.getConfidence().toString() + "\n"); List<Instance> instances = label.getInstances(); System.out.println("Instances of " + label.getName()); if (instances.isEmpty()) { System.out.println(" " + "None"); } else { for (Instance instance : instances) { System.out.println(" Confidence: " + instance.getConfidence().toString()); System.out.println(" Bounding box: " + instance.getBoundingBox().toString()); } } System.out.println("Parent labels for " + label.getName() + ":"); List<Parent> parents = label.getParents(); if (parents.isEmpty()) { System.out.println(" None"); } else { for (Parent parent : parents) { System.out.println(" " + parent.getName()); } } System.out.println("--------------------"); System.out.println(); } } catch (AmazonRekognitionException e) { e.printStackTrace(); } } }

Sample Details

Service: rekognition

Last tested: 2019-01-18

Author: reesch(AWS)

Type: full-example

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