Display TIFF Images in Java

Can anyone tell me how to load a multi-page TIFF image in Java and show it in JScrollPane? Which class can I use?

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2 answers

AFAIK, you cannot do this using the standard Java API.

JAI :

import java.io.File;
import java.io.IOException;
import java.awt.Frame;
import java.awt.image.RenderedImage;
import javax.media.jai.widget.ScrollingImagePanel;
import javax.media.jai.NullOpImage;
import javax.media.jai.OpImage;
import com.sun.media.jai.codec.SeekableStream;
import com.sun.media.jai.codec.FileSeekableStream;
import com.sun.media.jai.codec.TIFFDecodeParam;
import com.sun.media.jai.codec.ImageDecoder;
import com.sun.media.jai.codec.ImageCodec;

public class MultiPageRead extends Frame {

    ScrollingImagePanel panel;

    public MultiPageRead(String filename) throws IOException {

        setTitle("Multi page TIFF Reader");

        File file = new File(filename);
        SeekableStream s = new FileSeekableStream(file);

        TIFFDecodeParam param = null;

        ImageDecoder dec = ImageCodec.createImageDecoder("tiff", s, param);

        System.out.println("Number of images in this TIFF: " +
                           dec.getNumPages());

        // Which of the multiple images in the TIFF file do we want to load
        // 0 refers to the first, 1 to the second and so on.
        int imageToLoad = 0;

        RenderedImage op =
            new NullOpImage(dec.decodeAsRenderedImage(imageToLoad),
                            null,
                            OpImage.OP_IO_BOUND,
                            null);

        // Display the original in a 800x800 scrolling window
        panel = new ScrollingImagePanel(op, 800, 800);
        add(panel);
    }

    public static void main(String [] args) {

        String filename = args[0];

        try {
            MultiPageRead window = new MultiPageRead(filename);
            window.pack();
            window.show();
        } catch (java.io.IOException ioe) {
            System.out.println(ioe);
        }
    }
}

Example from: http://java.sun.com/products/java-media/jai/forDevelopers/samples/MultiPageRead.java

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This code sample from Sun uses version 1.0. In particular, javax.media.jai.widget.ScrollingImagePanel is deprecated in 1.1. The documentation explains that he was unable to show some images, but does not give another class.

      TIFFDecodeParam param = null;       ImageDecodeParam param = null; .

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Source: https://habr.com/ru/post/1720093/


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