emf to jpg conversion

Question

My objective is to convert emf,wmf file formats to other image file formats.

I included image4java jar and tried to convert my emf file to other formats like jpg,png.. using the following code:

import org.im4java.core.ConvertCmd;
import org.im4java.core.IMOperation;
import java.io.File;
public class im4java {
    public static void main(String arg[])
    {
        File input=new File("src/image.emf");
        File output=new File("src/output.jpg");
        convertemf2png(input,output);
    }
    public static void convertemf2png(File input,File output)
    {
        try{
        IMOperation img=new IMOperation();
        img.addImage();
        img.addImage();
        ConvertCmd convert=new ConvertCmd();
        convert.run(img,new Object[]{input,output});
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
}

while i execute it, i got the error like

when i use simply convert.run(img,new Object[]{input,output}); i got

java.lang.IllegalArgumentException: java.io.File is an unsupported image-type

        at org.im4java.core.ImageCommand.resolveImages(ImageCommand.java:289)
        at org.im4java.core.ImageCommand.prepareArguments(ImageCommand.java:189)
        at org.im4java.core.ImageCommand.run(ImageCommand.java:208)
        at im4java.convertemf2png(im4java.java:27)
        at im4java.main(im4java.java:18)

when i use, `convert.run(img,new Object[]{input.getAbsolutePath(),output.getAbsolutePath()}); i got,

 org.im4java.core.CommandException: org.im4java.core.CommandException: Invalid Parameter - C:\vignesh\im4java\src\output.jpg
        at org.im4java.core.ImageCommand.run(ImageCommand.java:215)
        at im4java.convertemf2png(im4java.java:27)
        at im4java.main(im4java.java:18)
Caused by: org.im4java.core.CommandException: Invalid Parameter - C:\vignesh\im4java\src\output.jpg
        at org.im4java.core.ImageCommand.finished(ImageCommand.java:247)
        at org.im4java.process.ProcessStarter.run(ProcessStarter.java:314)
        at org.im4java.core.ImageCommand.run(ImageCommand.java:211)

anyone please help me in fizing this issue or any other way to convert emf formatt image to other formats..Thanks in advance.

configuring environment-variable `IM4JAVA_TOOLPATH` (just `PATH` is not enough) helped me in similar situation — fedor.belov, Nov 27 '13 at 08:29

score 4 · Answer 1 · answered Jun 03 '11 at 21:04

4

You need to set the path to the ImageMagic executable - you are inadvertently calling a windows program named convert

answered Jun 03 '11 at 21:04

rhollencamp

533
4
13

score 3 · Answer 2 · answered Apr 23 '12 at 10:16

3

You also need to add these lines before using the im4java commands:

String myPath="PATH\TO\ImageMagick";
ProcessStarter.setGlobalSearchPath(myPath);

answered Apr 23 '12 at 10:16

pypmannetjies

25,734
7
39
49

score 1 · Answer 3 · answered Sep 27 '15 at 18:32

Put your images in Strings. Make sure you set the environment variable IM4JAVA_TOOLPATH to your imagemagick path.

import org.im4java.core.ConvertCmd;
import org.im4java.core.IMOperation;

public class im4java {
    public static void main(String arg[])
    {
        String input = "src/image.emf";
        String output = "src/output.jpg";
        convertemf2png(input,output);
    }
    public static void convertemf2png(String input,String output)
    {
        try{
        IMOperation img=new IMOperation();
        img.addImage();
        img.addImage();
        ConvertCmd convert=new ConvertCmd();
        convert.run(img,input,output);
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
}

score 0 · Answer 4 · answered May 27 '22 at 12:48

0

I wrote a walkaround here, for Java I learned that I can run shell command this way. For jpg, try this:

libreoffice --headless --convert-to jpg /mnt/b.emf

answered May 27 '22 at 12:48

Lerner Zhang

6,184
2
49
66

emf to jpg conversion

4 Answers4