Java Crop Image File using Imgscalr
Tags: Imgscalr BufferedImage ImageIO File Image File Crop Image Scalr
In this Java tutorial we learn how to crop an image file using the Scalr class of Imgscalr library.
How to add Imgscalr library to the Java project
To use the Imgscalr library in the Gradle build project, add the following dependency into the build.gradle file.
implementation 'org.imgscalr:imgscalr-lib:4.2'To use the Imgscalr library in the Maven build project, add the following dependency into the pom.xml file.
<dependency>
<groupId>org.imgscalr</groupId>
<artifactId>imgscalr-lib</artifactId>
<version>4.2</version>
</dependency>To have more information about the Imgscalr library you can visit the project repository at github.com/rkalla/imgscalr
How to crop an image in Java
The Imgscalr library provides the Scalr.crop() method to crop a given image.
The following Java code shows you how to implement a method to crop a given image file using the Scalr.crop() method with provided target width and height.
CropImageExample1.java
import org.imgscalr.Scalr;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class CropImageExample1 {
public static void main(String... args) {
String originalFilePath = "D:\\TestData\\logo.jpg";
String targetFilePath = "D:\\TestData\\logo-crop.jpg";
int width = 800;
int height = 600;
cropImage(originalFilePath, targetFilePath, width, height);
}
public static void cropImage(String originalFilePath, String targetFilePath, int width, int height) {
try {
File sourceFile = new File(originalFilePath);
BufferedImage originalImage = ImageIO.read(sourceFile);
BufferedImage resizedImage = Scalr.crop(originalImage, width, height);
File resizedFile = new File(targetFilePath);
ImageIO.write(resizedImage, "jpg", resizedFile);
originalImage.flush();
resizedImage.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
The Scalr.crop() also allows you to crop an image from a given starting x and y coordinate.
CropImageExample2.java
import org.imgscalr.Scalr;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class CropImageExample2 {
public static void main(String... args) {
String originalFilePath = "D:\\TestData\\logo.jpg";
String targetFilePath = "D:\\TestData\\logo-crop.jpg";
int x = 300;
int y = 300;
int width = 800;
int height = 600;
cropImage(originalFilePath, targetFilePath, x, y, width, height);
}
public static void cropImage(String originalFilePath, String targetFilePath, int x, int y, int width, int height) {
try {
File sourceFile = new File(originalFilePath);
BufferedImage originalImage = ImageIO.read(sourceFile);
BufferedImage resizedImage = Scalr.crop(originalImage, x, y, width, height);
File resizedFile = new File(targetFilePath);
ImageIO.write(resizedImage, "jpg", resizedFile);
originalImage.flush();
resizedImage.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Happy Coding 😊