Converting a Jpeg-2000 to TIFF

jp2_to_tiff.java

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

/**
 * https://github.com/jai-imageio/jai-imageio-core
 * https://github.com/jai-imageio/jai-imageio-jpeg2000
 * 
 * Example of fetching dependencies, compiling, and running.
 * 
 * wget https://repo1.maven.org/maven2/com/github/jai-imageio/jai-imageio-core/1.4.0/jai-imageio-core-1.4.0.jar
 * wget https://repo1.maven.org/maven2/com/github/jai-imageio/jai-imageio-jpeg2000/1.4.0/jai-imageio-jpeg2000-1.4.0.jar
 * 
 * javac jp2_to_tiff.java
 * 
 * java -cp .:jai-imageio-core-1.4.0.jar:jai-imageio-jpeg2000-1.4.0.jar jp2_to_tiff ESP_074800_1790_RED.JP2 /tmp/test.tiff
 */
public class jp2_to_tiff
{
    public static void main(String[] args) throws IOException
    {
        if (args.length < 2) return;

        System.err.println("JP2 = " + ImageIO.getImageReadersBySuffix("JP2").hasNext());

        BufferedImage img = ImageIO.read(new File(args[0]));

        if (img == null)
        {
           System.err.println("Could not read " + args[0]);
           return;
        }

        ImageIO.write(img, "TIFF", new File(args[1]));
    }
}