javax.imageio.plugins.jpeg

---

1. Read a JPEG Image and Convert to BufferedImage:

import javax.imageio.ImageIO;

public class ReadJPEG {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        System.out.println(image.getWidth() + "x" + image.getHeight());
    }
}

2. Write a JPEG Image from BufferedImage:

import javax.imageio.ImageIO;

public class WriteJPEG {
    public static void main(String[] args) throws Exception {
        BufferedImage image = new BufferedImage(300, 300, BufferedImage.TYPE_INT_RGB);
        ImageIO.write(image, "jpg", new File("image.jpg"));
    }
}

3. Adjust JPEG Compression Quality:

import javax.imageio.ImageIO;

import javax.imageio.plugins.jpeg.JPEGImageWriteParam;

public class AdjustQuality {
    public static void main(String[] args) throws Exception {
        JPEGImageWriteParam jpgParams = new JPEGImageWriteParam(null);
        jpgParams.setCompressionQuality(0.75f);
        ImageIO.write(image, "jpg", new File("image.jpg"), jpgParams);
    }
}

4. Read and Display Exif Metadata from JPEG:

import javax.imageio.ImageIO;

import javax.imageio.metadata.IIOMetadata;
import javax.imageio.metadata.IIOMetadataNode;

public class ExifDisplay {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        IIOMetadata metadata = ImageIO.getImageMetadata(image);
        IIOMetadataNode node = (IIOMetadataNode) metadata.getAsTree("javax_imageio_1.0");
        System.out.println(node.getElementsByTagName("tiff:Make").item(0).getTextContent());
    }
}

5. Extract JPEG Comment Marker:

import javax.imageio.ImageIO;

import javax.imageio.IIOImage;
import javax.imageio.ImageWriter;

import javax.imageio.stream.ImageInputStream;

public class CommentExtractor {
    public static void main(String[] args) throws Exception {
        ImageInputStream iis = ImageIO.createImageInputStream(new File("image.jpg"));
        ImageReader reader = ImageIO.getImageReaders(iis).next();
        reader.setInput(iis);
        IIOImage image = reader.readAll(0);
        String comment = image.getComment();
        System.out.println(comment);
    }
}

6. Create a Progressive JPEG:

import javax.imageio.ImageIO;

import javax.imageio.plugins.jpeg.JPEGImageWriteParam;

public class ProgressiveJPEG {
    public static void main(String[] args) throws Exception {
        JPEGImageWriteParam jpgParams = new JPEGImageWriteParam(null);
        jpgParams.setProgressiveMode(true);
        ImageIO.write(image, "jpg", new File("image.jpg"), jpgParams);
    }
}

7. Handle CMYK JPEGs:

import javax.imageio.ImageIO;

import java.util.Collections;

public class HandleCMYK {
    public static void main(String[] args) throws Exception {
        ImageIO.setUseCache(false);
        ImageIO.write(image, "jpg", new File("image.jpg"), Collections.emptyMap());
    }
}

8. Create a Transparent JPEG:

import javax.imageio.ImageIO;

import java.awt.Graphics2D;
import java.awt.image.BufferedImage;

public class TransparentJPEG {
    public static void main(String[] args) throws Exception {
        BufferedImage image = new BufferedImage(300, 300, BufferedImage.TYPE_INT_ARGB);
        Graphics2D g2d = image.createGraphics();
        g2d.fillRect(0, 0, 300, 300);
        ImageIO.write(image, "jpg", new File("image.jpg"));
    }
}

9. Use JPEG Optimizers to Reduce File Size:

import javax.imageio.ImageIO;

import net.sourceforge.jpegoptim.JpegOptim

import net.sourceforge.jpegoptim.FileLicense;

public class JpegOptimizer {
    public static void main(String[] args) throws Exception {
        JpegOptim optim = new JpegOptim(FileLicense.FREE);
        optim.optimize("image.jpg", "optimized.jpg");
    }
}

10. Manipulate JPEG Colorspace:

import javax.imageio.ImageIO;

import java.awt.image.ColorConvertOp;
import java.awt.image.colorConvertOpFilter;

public class ColorspaceManipulation {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        ColorConvertOp op = new ColorConvertOp(colorConvertOpFilter.CS_GRAY, null);
        op.filter(image, image);
        ImageIO.write(image, "jpg", new File("grayscale.jpg"));
    }
}

11. Resize a JPEG:

import javax.imageio.ImageIO;

import java.awt.image.BufferedImage;

public class ResizeJPEG {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        BufferedImage scaledImage = new BufferedImage(300, 300, BufferedImage.TYPE_INT_RGB);
        scaledImage.getGraphics().drawImage(image, 0, 0, 300, 300, null);
        ImageIO.write(scaledImage, "jpg", new File("scaled.jpg"));
    }
}

12. Crop a JPEG:

import javax.imageio.ImageIO;

import java.awt.image.BufferedImage;

public class CropJPEG {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        BufferedImage croppedImage = image.getSubimage(100, 100, 200, 200);
        ImageIO.write(croppedImage, "jpg", new File("cropped.jpg"));
    }
}

13. Rotate a JPEG:

import javax.imageio.ImageIO;

import java.awt.image.AffineTransformOp;

public class RotateJPEG {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        AffineTransformOp op = new AffineTransformOp(AffineTransform.getRotateInstance(Math.PI / 2), AffineTransformOp.TYPE_BILINEAR);
        BufferedImage rotatedImage = op.filter(image, null);
        ImageIO.write(rotatedImage, "jpg", new File("rotated.jpg"));
    }
}

14. Flip a JPEG Vertically:

import javax.imageio.ImageIO;

import java.awt.Graphics2D;
import java.awt.image.BufferedImage;

public class FlipVerticalJPEG {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        BufferedImage flippedImage = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_RGB);
        Graphics2D g2d = flippedImage.createGraphics();
        g2d.translate(0, image.getHeight());
        g2d.scale(1, -1);
        g2d.drawImage(image, 0, 0, null);
        g2d.dispose();
        ImageIO.write(flippedImage, "jpg", new File("flipped.jpg"));
    }
}

15. Flip a JPEG Horizontally:

import javax.imageio.ImageIO;

import java.awt.Graphics2D;
import java.awt.image.BufferedImage;

public class FlipHorizontalJPEG {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        BufferedImage flippedImage = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_RGB);
        Graphics2D g2d = flippedImage.createGraphics();
        g2d.translate(image.getWidth(), 0);
        g2d.scale(-1, 1);
        g2d.drawImage(image, 0, 0, null);
        g2d.dispose();
        ImageIO.write(flippedImage, "jpg", new File("flipped.jpg"));
    }
}

16. Convert a JPEG to PNG:

import javax.imageio.ImageIO;

public class JPEGtoPNG {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        ImageIO.write(image, "png", new File("image.png"));
    }
}

17. Convert a JPEG to GIF:

import javax.imageio.ImageIO;

import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.ByteArrayOutputStream;

public class JPEGtoGIF {
    public static void main(String[] args) throws IOException {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ImageIO.write(image, "gif", baos);
        byte[] gifBytes = baos.toByteArray();
    }
}

18. Convert a JPEG to WebP:

import javax.imageio.ImageIO;

import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;

public class JPEGtoWebP {
    public static void main(String[] args) throws IOException {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ImageIO.write(image, "webp", baos);
        byte[] webpBytes = baos.toByteArray();
    }
}

19. Extract Thumbnail from JPEG:

import javax.imageio.ImageIO;

import java.awt.image.BufferedImage;

public class ThumbnailExtractor {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        BufferedImage thumbnail = image.getScaledInstance(100, 100, BufferedImage.SCALE_DEFAULT);
    }
}

20. Create a JPEG with Exif Metadata:

import javax.imageio.ImageIO;

import javax.imageio.metadata.IIOMetadata;
import javax.imageio.metadata.IIOMetadataNode;

public class ExifAdder {
    public static void main(String[] args) throws Exception {
        BufferedImage image = new BufferedImage(300, 300, BufferedImage.TYPE_INT_RGB);
        IIOMetadata metadata = ImageIO.getImageMetadata(image);
        IIOMetadataNode node = (IIOMetadataNode) metadata.getAsTree("javax_imageio_1.0");
        node.getElementsByTagName("tiff:Make").item(0).setTextContent("Camera Brand");
        ImageIO.write(image, "jpg", new File("image.jpg"), metadata);
    }
}

21. Read JPEG Metadata using SimpleMetadata Provider:

import javax.imageio.ImageIO;

import javax.imageio.metadata.IIOMetadata;
import javax.imageio.metadata.IIOMetadataNode;
import javax.imageio.metadata.IIOMetadataFormatImpl;

public class SimpleMetadataReader {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        IIOMetadata metadata = ImageIO.getImageMetadata(image);
        String make = metadata.getAsTree("javax_imageio_1.0").getElementsByTagName("tiff:Make").item(0).getTextContent();
        System.out.println(make);
    }
}

22. Create a JPEG with Color Profile:

import javax.imageio.ImageIO;

import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.awt.image.ColorProfile;
import java.io.File;

public class ColorProfileSetter {
    public static void main(String[] args) throws Exception {
        BufferedImage image = new BufferedImage(300, 300, BufferedImage.TYPE_INT_RGB);
        Graphics2D g2d = image.createGraphics();
        g2d.setColor(Color.RED);
        g2d.fillRect(0, 0, 300, 300);
        g2d.dispose();
        ColorProfile profile = ColorProfile.getDefault();
        ImageIO.write(image, "jpg", new File("image.jpg"), profile);
    }
}

23. Read JPEG Color Profile:

import javax.imageio.ImageIO;

import java.awt.Color;
import java.awt.image.BufferedImage;
import java.awt.image.ColorProfile;
import java.io.File;

public class ColorProfileReader {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        ColorProfile profile = image.getColorModel().getColorSpace().getProfile();
        System.out.println(profile.getDescription());
    }
}

24. Encode and Decode a JPEG with Password:

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.PBEParameterSpec;
import javax.crypto.spec.IvParameterSpec;

import javax.imageio.ImageIO;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.nio.charset.StandardCharsets;
import java.security.SecureRandom;

public class EncryptedJPEG {
    private static final int ITERATION_COUNT = 65536;
    private static final int KEY_LENGTH = 128;

    public static void main(String[] args) throws Exception {
        String password = "secret-password";

        // Encode the JPEG
        byte[] salt = new SecureRandom().generateSeed(8);
        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
        SecretKey secretKey = factory.generateSecret(new PBEKeySpec(password.toCharArray(), salt, ITERATION_COUNT, KEY_LENGTH));
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        IvParameterSpec iv = new IvParameterSpec(new byte[16]);
        PBEParameterSpec pbeParams = new PBEParameterSpec(salt, ITERATION_COUNT);
        cipher.init(Cipher.ENCRYPT_MODE, secretKey, pbeParams, iv);
        FileInputStream fis = new FileInputStream("image.jpg");
        FileOutputStream fos = new FileOutputStream("encrypted.jpg");
        byte[] data = new byte[8192];
        int len;
        while ((len = fis.read(data)) > 0) {
            fos.write(cipher.update(data, 0, len));
        }
        fos.write(cipher.doFinal());
        fis.close();
        fos.close();

        // Decode the JPEG
        fis = new FileInputStream("encrypted.jpg");
        fos = new FileOutputStream("decrypted.jpg");
        cipher.init(Cipher.DECRYPT_MODE, secretKey, pbeParams, iv);
        while ((len = fis.read(data)) > 0) {
            fos.write(cipher.update(data, 0, len));
        }
        fos.write(cipher.doFinal());
        fis.close();
        fos.close();
    }
}

25. Use JJ2000 Instead of JPEG:

import javax.imageio.ImageIO;

import javax.imageio.plugins.jpeg2000.J2KImageWriteParam;

import java.awt.image.BufferedImage;
import java.io.File;

public class JJ2000Encoder {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        J2KImageWriteParam jpg2Params = new J2KImageWriteParam(null);
        jpg2Params.setLossless(true);
        ImageIO.write(image, "jp2", new File("image.jp2"), jpg2Params);
    }
}

26. Use the Java Advanced Imaging API with JPEG:

import java.awt.image.BufferedImage;

import javax.media.jai.RenderedOp;
import javax.media.jai.JAI;
import javax.media.jai.PlanarImage;

public class JAIProcessor {
    public static void main(String[] args) throws Exception {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        PlanarImage planarimage = PlanarImage.wrapRenderedImage(image);
        RenderedOp op = JAI.create("median", planarimage, 3, 3);
        BufferedImage processedImage = op.getAsBufferedImage();
    }
}

27. Combine Multiple JPEGs into a PDF:

import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import com.itextpdf.text.Document;
import com.itextpdf.text.Image;
import com.itextpdf.text.pdf.PdfWriter;

public class JPEGtoPDFCombiner {
    public static void main(String[] args) throws IOException {
        String[] filenames = {"image1.jpg", "image2.jpg", "image3.jpg"};
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        Document document = new Document();
        PdfWriter.getInstance(document, baos);
        document.open();
        for (String filename : filenames) {
            Image image = Image.getInstance(filename);
            document.add(image);
        }
        document.close();
        FileOutputStream fos = new FileOutputStream("document.pdf");
        fos.write(baos.toByteArray());
        fos.close();
    }
}

28. Use JPEG in a JavaFX Application:

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class JavaFXJPEG extends Application {
    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) {
        StackPane root = new StackPane();
        root.setPadding(new Insets(10));
        Image image = new Image("image.jpg");
        ImageView imageView = new ImageView(image);
        imageView.setFitWidth(300);
        imageView.setFitHeight(300);
        root.getChildren().add(imageView);
        Scene scene = new Scene(root);
        stage.setScene(scene);
        stage.show();
    }
}

29. Use JPEG in a Swing Application:

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.ImageIcon;

public class SwingJPEG {
    public static void main(String[] args) {
        JFrame frame = new JFrame();
        frame.setSize(300, 300);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        ImageIcon icon = new ImageIcon("image.jpg");
        JLabel label = new JLabel(icon);
        frame.add(label);
        frame.setVisible(true);
    }
}

30. Use JPEG in an Android Application:

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.widget.ImageView;

public class AndroidJPEG {
    public static void main(String[] args) {
        ImageView imageView = (ImageView) findViewById(R.id.imageView);
        Bitmap bitmap = BitmapFactory.decodeFile("image.jpg");
        imageView.setImageBitmap(bitmap);
    }
}

31. Use JPEG in an iOS Application:

import UIKit

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()

        let image = UIImage(named: "image.jpg")
        let imageView = UIImageView(image: image)
        imageView.frame = CGRect(x: 0, y: 0, width: 300, height: 300)
        view.addSubview(imageView)
    }
}

32. Use JPEG in a Website:

<img src="image.jpg" alt="Image">

33. Use JPEG for Image Compression:

import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.imageio.ImageIO;

public class JPEGCompressor {
    public static void main(String[] args) throws IOException {
        BufferedImage image = ImageIO.read(new File("image.png"));
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ImageIO.write(image, "jpg", baos, Collections.emptyMap());
        byte[] compressedBytes = baos.toByteArray();
        FileOutputStream fos = new FileOutputStream("compressed.jpg");
        fos.write(compressedBytes);
        fos.close();
    }
}

34. Use JPEG for Image Decompression:

import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.FileInputStream;
import java.io.IOException;

import javax.imageio.ImageIO;

public class JPEGDecompressor {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("compressed.jpg");
        ByteArrayInputStream bais = new ByteArrayInputStream(fis.readAllBytes());
        BufferedImage image = ImageIO.read(bais);
        ImageIO.write(image, "png", new File("decompressed.png"));
        fis.close();
    }
}

35. Use the libjpeg-turbo Library for Fast JPEG Encoding and Decoding:

import net.sourceforge.jpegturbo.TJCompressor;
import net.sourceforge.jpegturbo.TJDecompressor;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

public class LibjpegTurbo {
    public static void main(String[] args) throws IOException {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        TJCompressor compressor = new TJCompressor();
        compressor.setSourceImage(image);
        compressor.setJPEGQuality(95);
        compressor.compress(baos, true);
        byte[] compressedBytes = baos.toByteArray();
        TJDecompressor decompressor = new TJDecompressor();
        decompressor.setSourceImage(compressedBytes);
        decompressor.decompress(new ByteArrayInputStream(compressedBytes));
    }
}

36. Use the Imlib2 Library for Advanced Image Manipulation with JPEG:

import net.sourceforge.imlib2.Image;
import net.sourceforge.imlib2.Imlib;

import java.io.IOException;

public class Imlib2 {
    public static void main(String[] args) throws IOException {
        Image image = new Image("image.jpg");
        image.rotate(90);
        image.save("rotated.jpg");
    }
}

37. Use the OpenCV Library for Computer Vision with JPEG:

import org.opencv.core.Mat;
import org.opencv.imgcodecs.Imgcodecs;

public class OpenCV {
    public static void main(String[] args) {
        Mat image = Imgcodecs.imread("image.jpg");
        Mat grayImage = Imgcodecs.cvtColor(image, Imgcodecs.CV_BGR2GRAY);
        Imgcodecs.imwrite("gray.jpg", grayImage);
    }
}

38. Use the jHiccup Library for High-Throughput JPEG Transcoding:

import com.github.jaiimageio.jhiccup.options.TranscodeOptions;
import com.github.jaiimageio.jhiccup.services.JpegTranscoderService;

public class JHiccup {
    public static void main(String[] args) throws IOException {
        TranscodeOptions options = new TranscodeOptions();
        options.setQuality(95);
        JpegTranscoderService transcoder = new JpegTranscoderService(options);
        ImgDecoder.performDecoding(transcoder, "input.jpg", "output.jpg");
    }
}

39. Use the ImageIO Extra Libraries for Additional Image Processing with JPEG:

import com.jhlabs.image.GaussianFilter;

import javax.imageio.ImageIO;

import java.awt.image.BufferedImage;
import java.io.File;

public class ImageIOExtra {
    public static void main(String[] args) throws IOException {
        BufferedImage image = ImageIO.read(new File("image.jpg"));
        GaussianFilter filter = new GaussianFilter();
        BufferedImage blurredImage = filter.filter(image, null);
        ImageIO.write(blurredImage, "jpg", new File("blurred.jpg"));
    }
}

40. Use the EasyImage Library for Simple Image Manipulation with JPEG:

import net.coobird.thumbnailator.Thumbnails;

import java.io.File;
import java.io.IOException;

public class EasyImage {
    public static void main(String[] args) throws IOException {
        Thumbnails.of(new File("image.jpg")).size(300, 300).toFile("thumb.jpg");
    }
}

41. Use the Picasso Library for Image Loading in Android Applications:

import com.squareup.picasso.Picasso;

import android.widget.ImageView;

public class PicassoJPEG {
    public static void main(String[] args) {
        ImageView imageView = (ImageView) findViewById(R.id.imageView);
        Picasso.with(this).load("https://example.com/image.jpg").into(imageView);
    }
}

42. Use the Glide Library for Image Loading in Android Applications:

import com.bumptech.glide.Glide;

import android.widget.ImageView;

public class GlideJPEG {
    public static void main(String[] args) {
        ImageView imageView = (ImageView) findViewById(R.id.imageView);
        Glide.with(this).load("https://example.com/image.jpg").into(imageView);
    }
}

43. Use the Coil Library for Image Loading in Android Applications:

import io.coil.ImageLoader;
import io.coil.decode.GifDecoder
import io.coil.decode.ImageDecoder
import io.coil.decode.SvgDecoder

class MyActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val imageView = findViewById<ImageView>(R.id.imageView)

        val imageLoader = ImageLoader.Builder(this)
            .components {
                add(GifDecoder.Factory())
                add(SvgDecoder.Factory())
                add(ImageDecoder.Factory())
            }
            .build()
        imageLoader.load("https://example.com/image.jpg").into(imageView)
    }
}

44. Use the Fresco Library for Image Loading in Android Applications:

import com.facebook.drawee.backends.pipeline.Fresco

import com.facebook.drawee.view.SimpleDraweeView

public class FrescoJPEG {
    public static void main(String[] args) {
        Fresco.initialize(this);

        SimpleDraweeView draweeView = (SimpleDraweeView) findViewById(R.id.draweeView);
        draweeView.setImageURI(Uri.parse("https://example.com/image.jpg"));
    }
}

45. Use the Guava Library for Image Loading in Android Applications:

import com.google.common.util.concurrent.ListenableFuture
import com.google.common.util.concurrent.Futures
import com.google.common.cache.CacheLoader

import android.graphics.Bitmap

class MyActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val imageView = findViewById<ImageView>(R.id.imageView)

        val imageLoader = ImageLoader()
        val future: ListenableFuture<Bitmap> = imageLoader.load("https://example.com/image.jpg")

        Futures.addCallback(future, object : FutureCallback<Bitmap> {
            override fun onSuccess(result: Bitmap) {
                imageView.setImageBitmap(result)
            }

            override fun onFailure(t: Throwable) {
                // Handle error
            }
        })
    }

    class ImageLoader : CacheLoader<String, Bitmap> {
        override fun load(url: String): Bitmap {
            // Load the image from the network or disk cache
            return Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888)
        }
    }
}

46. Use the Picasso Library for Image Loading in Android Applications with Transformations:

import com.squareup.picasso.Picasso
import com.squareup.picasso.Transformation

import android.graphics.Bitmap
import android.widget.ImageView

public class PicassoJPEGTransformations {
    public static void main(String[] args) {
        ImageView imageView = (ImageView) findViewById(R.id.imageView);

        Picasso.with(this)
            .load("https://example.com/image.jpg")
            .transform(new Transformation() {
                @Override
                public Bitmap transform(Bitmap source) {
                    // Perform transformations on the bitmap
                    return source;
                }

                @Override
                public String key() {
                    return "my_transformation";
                }
            })
            .into(imageView);
    }
}

47. Use the Universal Image Loader Library for Image Loading in Android Applications:

import com.nostra13.universalimageloader.core.ImageLoader

import com.nostra13.universalimageloader.core.ImageLoaderConfiguration

import android.widget.ImageView

public class UniversalImageLoader {
    public static void main(String[] args) {
        // Create default configuration object
        ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(this)
            .build();
        // Initialize ImageLoader with configuration.
        ImageLoader.getInstance().init(config);

        ImageView imageView = (ImageView) findViewById(R.id.imageView);

        ImageLoader.getInstance()
            .displayImage("https://example.com/image.jpg", imageView);
    }
}

48. Use the Android Image Loading Library for Image Loading in Android Applications:

import com.android.volley.toolbox.ImageLoader

import com.android.volley.toolbox.NetworkImageView

import android.widget.ImageView

public class AndroidImageLoader {
    public static void main(String[] args) {
        RequestQueue requestQueue = Volley.newRequestQueue(this);

        ImageLoader imageLoader = new ImageLoader(requestQueue, new ImageLoader.ImageCache() {
            @Override
            public Bitmap getBitmap(String url) {
                return null;
            }

            @Override
            public void putBitmap(String url, Bitmap bitmap) {
            }
        });

        NetworkImageView imageView = (NetworkImageView) findViewById(R.id.imageView);

        imageView.setImageUrl("https://example.com/image.jpg", imageLoader);
    }
}

49. Use the Glide Library for Image Loading in Android Applications with Custom Request Options:

import com.bumptech.glide.Glide

import com.bumptech.glide.request.RequestOptions

import android.widget.ImageView

public class GlideJPEGCustomRequestOptions {
    public static void main(String[] args) {
        ImageView imageView = (ImageView) findViewById(R.id.imageView);

        Glide.with(this)
            .load("https://example.com/image.jpg")
            .apply(new RequestOptions()
                .override(300, 300)
                .placeholder(R.drawable.placeholder)
                .error(R.drawable.error))
            .into(imageView);
    }
}

50. Use the Picasso Library for Image Loading in Android Applications with Image Caching:

import com.squareup.picasso.Picasso

import android.widget.ImageView

public class PicassoCaching {
    public static void main(String[] args) {
        ImageView imageView = (ImageView) findViewById(R.id.imageView);

        Picasso.with(this)
            .load("https://example.com/image.jpg")
            .into(imageView, new Callback() {
                @Override
                public void onSuccess() {
                    // Image loaded successfully
                }

                @Override
                public void onError() {
                    // Handle error
                }
            });
    }
}