A Java interface to llibvips, the fast image processing library with low memory needs.
Example: Generate a Thumbnail for a PDF.
package jlibvips.example;
import org.jlibvips.*;
import java.nio.file.Paths;
import java.nio.file.Files;
public class PDFThumbnailExample {
public static void main(String[] args) {
var image = VipsImage.formPdf(Paths.get(args[0]), 0); // Second Parameter is the Page Number
var thumbnail = image.thumbnail()
.autoRotate()
.create();
var thumbnailFile = thumbnail.jpeg()
.quality(100)
.strip()
.save();
System.out.printf("Thumbnail generated in '%s'.%n", thumbnailFile.toString());
System.out.println("Done!");
}
}Example: Create an Image Pyramid form a large PNG File.
package jlibvips.example;
import org.jlibvips.VipsImage;
import java.nio.file.Paths;
public class ImagePyramidExample {
public static void main(String[] args) {
var image = VipsImage.formFile(Paths.get(args[0]));
var directory = Files.createTempDirectory("example-pyramid");
image.deepZoom(directory)
.layout(DeepZoomLayouts.Google)
.container(DeepZoomContainer.FileSystem)
.suffix(".jpg[Q=100]")
.save();
System.out.printf("Pyramid generated in folder '%s'.%n", directory.toString());
System.out.println("Done.");
}
}