DICOM

[Maya Naga]

hi all,
am new to DICOM..
i need some sample code on how to display dicom images using java..
can any one please help me how to do it...
is thier any sites available for dicom imaging codes...

thank you..

[Ulf Dittmer]

You may want to investigate the open source ImageJ application/library - it can read and display DICOM files.

[Maya Naga]

I have displayed the dicom image successfully
now i want to compress the image..

what compression algorithm i can use for this?
could you please help me with any link or descriptions..

Thanks in advance..

[Maya Naga]

is their any best compression technique to compress dicom image without losing the details?
please help

[Maneesh Godbole]

http://fixunix.com/dicom/514627-dicom-compression-extraction.html

[Maya Naga]

hi ranches..
i successfully wrote a program to display dicom images..and display the tag values in a table..
now i need to combine it both..
that is i need to get the image value and pass it as input file to the table class..
i tried as follows:

// in table class
public void TableDemo1(File file)throws IOException
	{
		this.file=file;
	//File file=new File("/home/ambiga/dicom/dcmimg/178555216.dcm");
	DicomInputStream in = new DicomInputStream(file);
	dcmobj=in.readDicomObject();
	dcmobj.remove(Tag.PixelData);
	name=dcmobj.getString(Tag.PatientName);
	id= dcmobj.getString(Tag.PatientID);
	phy=dcmobj.getString(Tag.ReferringPhysicianName);
	in.close();
	
		TableModel model=new AbstractTableModel()
		{
			Object row[][]={{name,id,phy}};
			Object column[]={"Patient Name","Patient ID","Phy Name"};
			public String getColumnName(int col)
			{
				return column[col].toString();
			}
			public int getRowCount()
			{
				return row.length;
			}
			public int getColumnCount()
			{
				return column.length;
			}
			public Object getValueAt(int r,int c)
			{
				return row[r][c];
			}
		};


//in image class


private void loadImage()
	{
		try
		{
			//ImageIO.scanForPlugins();
			JFileChooser jfc = new JFileChooser();
			int result = jfc.showOpenDialog(this);

			if(result == JFileChooser.APPROVE_OPTION)
			{

				String[] mimes = ImageIO.getReaderMIMETypes();

				for(int j = 0; j < mimes.length; j++)
				{
					try
					{
						f= jfc.getSelectedFile();
                                               
						TableDemo1(f);// here am passing the file as input to table class

						
						Iterator<ImageReader> it = ImageIO.getImageReadersByMIMEType(mimes[j]);
						ImageReader ir = (ImageReader)it.next();
						ImageInputStream in = ImageIO.createImageInputStream(f);

						ir.setInput(in, true);

						Iterator<ImageTypeSpecifier> itTypes = ir.getImageTypes(0);

						while(itTypes.hasNext())
						{
							ImageTypeSpecifier its = (ImageTypeSpecifier)itTypes.next();
							
						}

						BufferedImage bi = ir.read(0);

						if(bi == null)
						{
							System.out.println(bi+"not found");
						}
						else
						{
							ImageIcon ic = new ImageIcon(bi);

							jlblImage.setIcon(ic);
							jlblImage.updateUI();
							break;
						}
					}	
					catch(Exception e)
					{
	
					}
				}//for
			}
		}
			catch(Exception e)
			{
			
			}

but am getting error as :

Exception in thread "AWT-EventQueue-0" java.lang.Error: Unresolved compilation problem:
The method TableDemo1(File) is undefined for the type imagetable



can anyone please help....
i willl be very thankful to them...

[Ulf Dittmer]

"TableDemo1(f)" is not a valid Java expression. If you want to create a new TableDemo1 object, then the proper syntax for that is "new TableDemo1(f)".

[Maya Naga]

oh thanks Ulf Dittmer...

it works well now..

[Maya Naga]

Hi everyone,

i have developed program successfully to display dicom image and its header information....
the problem am facing here is i can successfully display elements and its sub item values.. but cant display another set of sub elements present in that sub item values
That is if displayed it is aligned normally without a tab space...

also i need to display these sub element values alone in a table...
here is my code which displays header information...

public class list_header
{
	public String s[][][]=new String[50][20][10];
	int i=0,j=0,k=0;
	public String tagvalue;
	public boolean flag=false;

	public void list_header1(DicomObject obj)
	{
//				System.out.println("Tag"+"\t"+"VR"+"\t"+"TagName"+"\t"+"TagData");
		                Iterator<DicomElement> itr=obj.datasetIterator();
		
		while(itr.hasNext())
		{
			DicomElement element=itr.next();
			int tag=element.tag();
			
			try
			{
			
				String tagname=obj.nameOf(tag);
				String tagaddr=TagUtils.toString(tag);
				String tagvr=obj.vrOf(tag).toString();
				if(tagvr.equals("SQ"))
				{ 	
					flag=true;	
					if(element.hasItems())
					{
						System.out.println(tagaddr + " [ "+ tagvr +" ] "+tagname );
						list_header1(element.getDicomObject());							
						flag=false;
						continue;
					}
				}				
				tagvalue=obj.getString(tag);
				s[0][0][0]=tagaddr;
				s[0][1][0]=tagvr;
				s[0][0][1]=tagname;
				s[0][1][1]=tagvalue;	
				if(flag)
				{
					//flag=false;
					System.out.println("\t"+s[0][0][0] + " [ "+ s[0][1][0] +" ]"+"\t"+" [ "+  s[0][0][1] +" ] "+"\t\t"+s[0][1][1]);
				}
				else
					System.out.println(s[0][0][0] + " [ "+ s[0][1][0] +" ]"+"\t"+" [ "+  s[0][0][1] +" ] "+"\t\t"+s[0][1][1]);
			}
			
			catch(Exception e)
			{
				e.printStackTrace();
			}
	
		}
	}
	public static void main(String ar[])
	{
		DicomObject obj=null;
		try
		{
			DicomInputStream dis=new DicomInputStream(new File("/home/ambiga/dicom/dcmimg/1.dcm"));
			obj=dis.readDicomObject();
			dis.close();
		}
		catch(Exception e)
		{
			System.out.println(e.getMessage());
			System.exit(0);			
		}
	
	list_header list=new list_header();
	System.out.println("\n");
	System.out.println("Tag"+"\t"+"     VR"+"\t\t"+"  TagName"+"\t\t\t"+"TagData");
	System.out.println("==="+"\t"+"     =="+"\t\t"+"  ======="+"\t\t\t"+"=======");
	System.out.println("\n");
	list.list_header1(obj);
}
}

can anyone help....
thaks in advance...

[Maya Naga]

please can anyone help on the above post..

[Ulf Dittmer]

the problem am facing here is i can successfully display elements and its sub item values.. but cant display another set of sub elements present in that sub item values
That is if displayed it is aligned normally without a tab space...

What does the code do now? Can you post an example of its output as is, and an example of the output you'd like to get? Where do you think the problem is getting from one to the other?

[Maya Naga]

thanks ulf...

the output for the above code will be like this:

(0008,0005) [ CS ]	 [ Specific Character Set ] 		ISO_IR 100
(0008,0008) [ CS ]	 [ Image Type ] 		ORIGINAL
(0008,0016) [ UI ]	 [ SOP Class UID ] 		1.2.840.10008.5.1.4.1.1.2
.........................................................
..................................................
(0040,0275) [ SQ ] Request Attributes Sequence      
	(0040,0007) [ LO ]	 [ Scheduled Procedure Step Description ] 		CT ANGIOGRAM CARDIAC W/CONTRAST         [this is subitem of(0040,0275)]

(0040,0008) [ SQ ] Scheduled Protocol Code Sequence      [this is also the subitem of same (0040,0275)] but it appends to main value]....
	(0008,0100) [ SH ]	 [ Code Value ] 		CTCHWCACAR
	(0008,0102) [ SH ]	 [ Coding Scheme Designator ] 		LOCAL
	(0008,0104) [ LO ]	 [ Code Meaning ] 		CT ANGIOGRAM CARDIAC W/CONTRAST
(0040,0009) [ SH ]	 [ Scheduled Procedure Step ID ] 		3813151
(0040,1001) [ SH ]	 [ Requested Procedure ID ] 		3813151
........................................................

but i need to display as follows

(0008,0005) [ CS ]	 [ Specific Character Set ] 		ISO_IR 100
(0008,0008) [ CS ]	 [ Image Type ] 		ORIGINAL
(0008,0016) [ UI ]	 [ SOP Class UID ] 		1.2.840.10008.5.1.4.1.1.2
.........................................................
..................................................
(0040,0275) [ SQ ] Request Attributes Sequence      
           (0040,0007) [ LO ]	 [ Scheduled Procedure Step Description ] 		CT ANGIOGRAM CARDIAC W/CONTRAST         [this is subitem of(0040,0275)]
           (0040,0008) [ SQ ] Scheduled Protocol Code Sequence      [this is also the subitem of same (0040,0275)] but it appends to main value]....
                     (0008,0100) [ SH ]	 [ Code Value ] 		CTCHWCACAR
                     (0008,0102) [ SH ]	 [ Coding Scheme Designator ] 		LOCAL
                     (0008,0104) [ LO ]	 [ Code Meaning ] 		CT ANGIOGRAM CARDIAC W/CONTRAST
           (0040,0009) [ SH ]	 [ Scheduled Procedure Step ID ] 		3813151
           (0040,1001) [ SH ]	 [ Requested Procedure ID ] 		3813151
........................................................

Also i need the subitems output in the form of table ....
can you help with some idea or any change in code...

[Ulf Dittmer]

At a quick glance those outputs look identical except for some white space; what's the functional difference?

[Maya Naga]

no if you keenly notice you can see the difference at (0040,0008) [SQ]
in both the output that makes big difference.. also i need to append (0040,0008) and its subitems next to (0040,0007)....

(0008,0005) [ CS ]	 [ Specific Character Set ] 		ISO_IR 100
(0008,0008) [ CS ]	 [ Image Type ] 		ORIGINAL
(0008,0016) [ UI ]	 [ SOP Class UID ] 		1.2.840.10008.5.1.4.1.1.2
.........................................................
..................................................
(0040,0275) [ SQ ] Request Attributes Sequence      
	(0040,0007) [ LO ]	 [ Scheduled Procedure Step Description ] 		CT ANGIOGRAM CARDIAC W/CONTRAST         [this is subitem of(0040,0275)]

(0040,0008) [ SQ ] Scheduled Protocol Code Sequence      [this is also the subitem of same (0040,0275)] but it appends to main value]....
	(0008,0100) [ SH ]	 [ Code Value ] 		CTCHWCACAR
	(0008,0102) [ SH ]	 [ Coding Scheme Designator ] 		LOCAL
	(0008,0104) [ LO ]	 [ Code Meaning ] 		CT ANGIOGRAM CARDIAC W/CONTRAST
(0040,0009) [ SH ]	 [ Scheduled Procedure Step ID ] 		3813151
(0040,1001) [ SH ]	 [ Requested Procedure ID ] 		3813151
........................................................

[Maya Naga]

i was developing a program that checks and display dcm files using netbeans...
but whenever i analyse a particular directory to display the dcm files in jtable am getting the below error:

Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space

this s my code..

private void analyseactionPerformed(java.awt.event.ActionEvent evt)
{
    try
    {
            k = 0;
            File temp = jfc.getSelectedFile();
            analyse(temp);
            FileTableModel model = new FileTableModel(subdirectory);
            jTable1.setModel(model);
            System.out.println("k : " + k);
    }
    catch(Exception e)
    {
            JOptionPane.showMessageDialog(this,"Pls Select a Directory!","No File Selected",JOptionPane.WARNING_MESSAGE);
            System.out.println(e.getMessage());
            browsetxt.setText("No Files Selected");
    }
}
    public int analyse(File dir)
    {
        try
        {
            for (File file:dir.listFiles())
            {
                status=verifydicomfiles(file);
                if (status)
                {
                    if (file.isFile())
                    {
                        count++;
                        subdirectory[k] = file;
                        k++;
                    }
                    else if (file.isDirectory())
                    {
                        count += analyse(file);
                    }
                }
            }
        } 
        catch (Exception e)
        {
            e.printStackTrace();
        }
        return k;
    }
    public boolean verifydicomfiles(File filedir)
    {
        boolean verify=false;
        try
        {
            dcmobj=new BasicDicomObject();
            in = new DicomInputStream(filedir);
            dcmobj=in.readDicomObject();
            if(dcmobj==null)
            {
                in.close();
                verify=false;
            }
            else
            {
                in.close();
                verify= true;
            }
        }
        catch(Exception e)
        {
            verify=false;
            e.printStackTrace();
        }
        return verify;
   }

can you please explain where is the problem and what to change?
thanks..

[Ulf Dittmer]

Which action causes this? Are you certain that the code properly disposes of all objects it no longer needs? Be sure to read the javadocs of all classes you use with respect to this.

[vivekkumar vijayan]

Im new to Dicom . Can Any one help me . Im using NETBEANS IDE for developing swing Standalone Application. What jar files i should use to work on dicom application.

[Ulf Dittmer]

vivekkumar vijayan,

I'm not sure what you mean by "work on dicom application", but if you're looking for a library that can read DICOM files then I've mentioned one in my first post.

[vivekkumar vijayan]

ya thank for this information .. Im new to DICOM Please help me....

What is the purpose of this http://www.dcm4che.org/ and by using this dcm4che, how can i Get the dicom image from x-ray device and Store Dicom image into database server using java.

And also i want to know what is the use of JBOSS server in my application that get x-ray images from X-Ray machine and store it into database.

[Ulf Dittmer]

Let's keep this topic to DICOM, specifically. If you have question about other topics, please start a new thread in an appropriate forum. The product/library you mention would best fit into the "Other Open Source Projects" forum.

[venkat yuvaraj]

hi im venkat...i want to know how to convert 2D to 3D dicom image