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rekognition-image-java-compare-faces.java

rekognition-image-java-compare-faces.java demonstrates how to compare 2 faces.

/** * 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 com.amazonaws.services.rekognition.AmazonRekognition; import com.amazonaws.services.rekognition.AmazonRekognitionClientBuilder; import com.amazonaws.services.rekognition.model.Image; import com.amazonaws.services.rekognition.model.BoundingBox; import com.amazonaws.services.rekognition.model.CompareFacesMatch; import com.amazonaws.services.rekognition.model.CompareFacesRequest; import com.amazonaws.services.rekognition.model.CompareFacesResult; import com.amazonaws.services.rekognition.model.ComparedFace; import java.util.List; import java.io.File; import java.io.FileInputStream; import java.io.InputStream; import java.nio.ByteBuffer; import com.amazonaws.util.IOUtils; public class CompareFaces { public static void main(String[] args) throws Exception{ Float similarityThreshold = 70F; //Replace sourceFile and targetFile with the image files you want to compare. String sourceImage = "source.jpg"; String targetImage = "target.jpg"; ByteBuffer sourceImageBytes=null; ByteBuffer targetImageBytes=null; AmazonRekognition rekognitionClient = AmazonRekognitionClientBuilder.defaultClient(); //Load source and target images and create input parameters try (InputStream inputStream = new FileInputStream(new File(sourceImage))) { sourceImageBytes = ByteBuffer.wrap(IOUtils.toByteArray(inputStream)); } catch(Exception e) { System.out.println("Failed to load source image " + sourceImage); System.exit(1); } try (InputStream inputStream = new FileInputStream(new File(targetImage))) { targetImageBytes = ByteBuffer.wrap(IOUtils.toByteArray(inputStream)); } catch(Exception e) { System.out.println("Failed to load target images: " + targetImage); System.exit(1); } Image source=new Image() .withBytes(sourceImageBytes); Image target=new Image() .withBytes(targetImageBytes); CompareFacesRequest request = new CompareFacesRequest() .withSourceImage(source) .withTargetImage(target) .withSimilarityThreshold(similarityThreshold); // Call operation CompareFacesResult compareFacesResult=rekognitionClient.compareFaces(request); // Display results List <CompareFacesMatch> faceDetails = compareFacesResult.getFaceMatches(); for (CompareFacesMatch match: faceDetails){ ComparedFace face= match.getFace(); BoundingBox position = face.getBoundingBox(); System.out.println("Face at " + position.getLeft().toString() + " " + position.getTop() + " matches with " + face.getConfidence().toString() + "% confidence."); } List<ComparedFace> uncompared = compareFacesResult.getUnmatchedFaces(); System.out.println("There was " + uncompared.size() + " face(s) that did not match"); System.out.println("Source image rotation: " + compareFacesResult.getSourceImageOrientationCorrection()); System.out.println("target image rotation: " + compareFacesResult.getTargetImageOrientationCorrection()); } }

Sample Details

Service: rekognition

Last tested: 2019-01-18

Author: reesch(AWS)

Type: full-example

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