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import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
public class ImageManipulationExample {
static String PATH = "C:/Users/tiago/Pictures/";
static String SOURCE1 = "image1";
static String SOURCE2 = "image2";
static String COMBINATION = "combine";
static String SUBTRACTION = "subtraction";
static String IMAGE_FILE_TYPE = "png";
public static void main(String[] args) throws IOException {
BufferedImage imgA = ImageIO.read(new File(PATH + SOURCE1 + "." + IMAGE_FILE_TYPE));
BufferedImage imgB = ImageIO.read(new File(PATH + SOURCE2 + "." + IMAGE_FILE_TYPE));
System.out.println(ImageManipulationExample.bufferedImagesEqual(imgA, imgB));
ImageManipulationExample.subtractImages(imgA, imgB);
ImageManipulationExample.combineImages(imgA, imgB);
}
private static void combineImages(BufferedImage image1, BufferedImage image2) throws IOException {
BufferedImage result = new BufferedImage(image1.getWidth(), image1.getHeight(), image1.getType());
for (int x = 0; x < image1.getWidth(); x++)
for (int y = 0; y < image1.getHeight(); y++) {
result.setRGB(x, y, Math.abs(image2.getRGB(x, y) + image1.getRGB(x, y)));
}
ImageIO.write(result, IMAGE_FILE_TYPE, new File(PATH + COMBINATION + "." + IMAGE_FILE_TYPE));
}
private static void subtractImages(BufferedImage image1, BufferedImage image2) throws IOException {
BufferedImage result = new BufferedImage(image1.getWidth(), image1.getHeight(), image1.getType());
for (int x = 0; x < image1.getWidth(); x++)
for (int y = 0; y < image1.getHeight(); y++) {
result.setRGB(x, y, Math.abs(image2.getRGB(x, y) - image1.getRGB(x, y)));
}
ImageIO.write(result, IMAGE_FILE_TYPE, new File(PATH + SUBTRACTION + "." + IMAGE_FILE_TYPE));
}
private static boolean bufferedImagesEqual(BufferedImage img1, BufferedImage img2) {
if (!(img1.getWidth() == img2.getWidth() && img1.getHeight() == img2.getHeight())) {
return false;
}
for (int x = 0; x < img1.getWidth(); x++) {
for (int y = 0; y < img1.getHeight(); y++) {
if (img1.getRGB(x, y) != img2.getRGB(x, y))
return false;
}
}
return true;
}
}
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