initial commit

image-processing/pom.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>image-processing</artifactId>
@@ -60,6 +61,27 @@
 			<artifactId>tesseract-platform</artifactId>
 			<version>${tesseract-platform.version}</version>
 		</dependency>
+		<dependency>
+			<groupId>org.imgscalr</groupId>
+			<artifactId>imgscalr-lib</artifactId>
+			<version>${imgscalr-version}</version>
+		</dependency>
+		<dependency>
+			<groupId>net.coobird</groupId>
+			<artifactId>thumbnailator</artifactId>
+			<version>${thumbnailator-version}</version>
+		</dependency>
+		<dependency>
+			<groupId>com.github.downgoon</groupId>
+			<artifactId>marvin</artifactId>
+			<version>${marvin-version}</version>
+			<type>pom</type>
+		</dependency>
+		<dependency>
+			<groupId>com.github.downgoon</groupId>
+			<artifactId>MarvinPlugins</artifactId>
+			<version>${marvin-version}</version>
+		</dependency>
 	</dependencies>
 
 	<properties>
@@ -68,6 +90,9 @@
 		<imageio.version>3.3.2</imageio.version>
 		<tess4j.version>4.5.1</tess4j.version>
 		<tesseract-platform.version>4.1.0-1.5.2</tesseract-platform.version>
+		<imgscalr-version>4.2</imgscalr-version>
+		<thumbnailator-version>0.4.11</thumbnailator-version>
+		<marvin-version>1.5.5</marvin-version>
 	</properties>
 
 </project>

image-processing/src/main/java/com/baeldung/image/resize/core/Graphics2DExample.java

@@ -0,0 +1,25 @@
+package com.baeldung.image.resize.core;
+
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+public class Graphics2DExample {
+
+    static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) throws IOException {
+        BufferedImage resizedImage = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB);
+        Graphics2D graphics2D = resizedImage.createGraphics();
+        graphics2D.drawImage(originalImage, 0, 0, targetWidth, targetHeight, null);
+        graphics2D.dispose();
+        return resizedImage;
+    }
+
+    public static void main(String[] args) throws IOException {
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = resizeImage(originalImage, 200, 200);
+        ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage1.jpg"));
+    }
+}

image-processing/src/main/java/com/baeldung/image/resize/core/ImageScaledInstanceExample.java

@@ -0,0 +1,24 @@
+package com.baeldung.image.resize.core;
+
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+public class ImageScaledInstanceExample {
+    static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) throws IOException {
+        Image resultingImage = originalImage.getScaledInstance(targetWidth, targetHeight, Image.SCALE_DEFAULT);
+        BufferedImage bufferedImage = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB);
+        bufferedImage.getGraphics()
+            .drawImage(resultingImage, 0, 0, null);
+        return bufferedImage;
+    }
+
+    public static void main(String[] args) throws IOException {
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = resizeImage(originalImage, 200, 200);
+        ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage1.jpg"));
+    }
+}

image-processing/src/main/java/com/baeldung/image/resize/imagescalr/ImagescalrExample.java

@@ -0,0 +1,24 @@
+package com.baeldung.image.resize.imagescalr;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+
+import javax.imageio.ImageIO;
+
+import org.imgscalr.Scalr;
+
+public class ImagescalrExample {
+    static BufferedImage simpleResizeImage(BufferedImage originalImage, int targetWidth) throws Exception {
+        return Scalr.resize(originalImage, targetWidth);
+    }
+
+    static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) throws Exception {
+        return Scalr.resize(originalImage, Scalr.Method.AUTOMATIC, Scalr.Mode.AUTOMATIC, targetWidth, targetHeight, Scalr.OP_ANTIALIAS);
+    }
+
+    public static void main(String[] args) throws Exception {
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = resizeImage(originalImage, 200, 200);
+        ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage1.jpg"));
+    }
+}

image-processing/src/main/java/com/baeldung/image/resize/marvin/MarvinExample.java

@@ -0,0 +1,22 @@
+package com.baeldung.image.resize.marvin;
+
+import org.marvinproject.image.transform.scale.Scale;
+
+import marvin.image.MarvinImage;
+import marvin.io.MarvinImageIO;
+
+public class MarvinExample {
+    static void resizeImage(String originalImagePath, int targetWidth, int targetHeight, String outputImagePath) {
+        MarvinImage image = MarvinImageIO.loadImage(originalImagePath);
+        Scale scale = new Scale();
+        scale.load();
+        scale.setAttribute("newWidth", targetWidth);
+        scale.setAttribute("newHeight", targetHeight);
+        scale.process(image.clone(), image, null, null, false);
+        MarvinImageIO.saveImage(image, outputImagePath);
+    }
+
+    public static void main(String args[]) {
+        resizeImage("src/main/resources/images/sampleImage.jpg", 200, 200, "src/main/resources/images/sampleImage1.jpg");
+    }
+}

image-processing/src/main/java/com/baeldung/image/resize/thumbnailator/ThumbnailatorExample.java

@@ -0,0 +1,30 @@
+package com.baeldung.image.resize.thumbnailator;
+
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+
+import javax.imageio.ImageIO;
+
+import net.coobird.thumbnailator.Thumbnails;
+
+public class ThumbnailatorExample {
+    static BufferedImage resizeImage(BufferedImage originalImage, int targetWidth, int targetHeight) throws Exception {
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        Thumbnails.of(originalImage)
+            .size(targetWidth, targetHeight)
+            .outputFormat("JPEG")
+            .outputQuality(0.90)
+            .toOutputStream(outputStream);
+        byte[] data = outputStream.toByteArray();
+        ByteArrayInputStream inputStream = new ByteArrayInputStream(data);
+        return ImageIO.read(inputStream);
+    }
+
+    public static void main(String[] args) throws Exception {
+        BufferedImage originalImage = ImageIO.read(new File("src/main/resources/images/sampleImage.jpg"));
+        BufferedImage outputImage = resizeImage(originalImage, 200, 200);
+        ImageIO.write(outputImage, "jpg", new File("src/main/resources/images/sampleImage1.jpg"));
+    }
+}