XorImageComparator.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License 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 org.github.jipsg.common.image.compare.impl;

import org.github.jipsg.common.image.BufferedImageHistogram;
import org.github.jipsg.common.image.compare.ImageComparator;
import org.github.jipsg.common.image.compare.ImageComparatorResult;
import org.github.jipsg.common.image.diff.impl.XorImageDiffer;

import java.awt.image.BufferedImage;

/**
 * Created by sgoeschl on 25/12/14.
 */
public class XorImageComparator implements ImageComparator {
    @Override
    public ImageComparatorResult compare(BufferedImage lhs, BufferedImage rhs) {
        BufferedImage diffBufferedImage = new XorImageDiffer().diff(lhs, rhs);
        BufferedImageHistogram diffBufferedImageHistogram = new BufferedImageHistogram(diffBufferedImage);
        boolean isIdentical = diffBufferedImageHistogram.isWhite(1);
        return new ImageComparatorResult(isIdentical, diffBufferedImage);
    }
}