I am still very much a beginner in programming, and i am facing an issue with a code that i am hoping someone could help me with. I found the java code below for overlaying and comparing the pixels of two images in an online forum. When i try to compile the code i get a syntax error. Hope you can help me find the error. Some of the errors am getting:
When trying to run the code i get a window saying "The selection cannot be launched, and there are no recent launches"
next to the first code line "module Image_Overlay {" am getting the error "Syntax error on token(s), misplaced construct(s)"
next to code line Nr. 7 am getting the error "The type java.awt.image.BufferedImage is not accessible"
Thanks in advance.
The code is as following:
package stackexchange; import java.awt.Color; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; public class PictureOverlayTest { /* * Four variables, three for the wanted BufferedImages, one String for the * Path of the third Image, which does not already exist. */` private BufferedImage image1; private BufferedImage image2; private BufferedImage image3; private String pathImage3; public PictureOverlayTest(String filePathAndName1, String filePathAndName2, String filePathAndName3) throws IOException { /* * Constructor in order to keep this method reusable and clean. Needs * three Strings. The paths and Filenames of all three images. Image 1 * and 2 should exist already, Image 3 will be created if all * requirements are met. Constructor creates the first two buffered * images, sets all needed variables and starts the checkAndCompare() * method */ File file = new File(filePathAndName1); this.image1 = ImageIO.read(file); file = new File(filePathAndName2); this.image2 = ImageIO.read(file); this.pathImage3 = filePathAndName3; checkAndCompare(); } private void checkAndCompare() throws IOException { /* * This function creates the Color blue, compares the sizes of both * pictures and if they are the same, creates a third image. Then it * loops through the two images and compares each pixel. If the pixels * are the same, the third image gets a blue pixel at that point */ Color blue = Color.blue; if (image1.getHeight() == image2.getHeight() && image1.getWidth() == image2.getWidth()) { image3 = new BufferedImage(image1.getWidth(), image1.getHeight(), image1.getType()); for (int y = 0; y < image1.getHeight(); y++) { for (int x = 0; x < image1.getWidth(); x++) { int colorImage1 = image1.getRGB(x, y); int colorImage2 = image2.getRGB(x, y); if (colorImage1 == colorImage2) { image3.setRGB(x, y, blue.getRGB()); } else { // Whatever Color you want. By default it is black. } } } savePicture3(); System.out.println("Message: Image comparison is done"); } else { System.out.println("Error: Image dimensions do not match"); } } private void savePicture3() throws IOException { /* * This method saves the created Image into a file onto your computer. * The if() statement is used to check if the file was successfully * created, in order to avoid unwanted errors. Keep in mind, that you * have to change the "bmp" in ImageIO.write() to whatever format you * actually want */ File file = new File(pathImage3); if (file.createNewFile()) { ImageIO.write(image3, "bmp", file); } } } package stackexchange; import java.io.IOException; public class Main { public static void main(String[] args) { // TODO Auto-generated method stub try { PictureOverlayTest test = new PictureOverlayTest( "H:\\stackexchange\\file1.bmp", "H:\\stackexchange\\file2.bmp", "H:\\stackexchange\\file3.bmp"); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }