uk.ac.essex.common.image
Class DicomImage

java.lang.Object
  com.sun.media.jai.codecimpl.SimpleRenderedImage
      uk.ac.essex.common.image.DicomImage

All Implemented Interfaces:

java.awt.image.RenderedImage

public class DicomImage
extends com.sun.media.jai.codecimpl.SimpleRenderedImage

A class defines the decoded 12-bit DICOM image. This class contains a single-tile short-type image in a little-endian file format. A list of primary medical image parameters such as image width, image height, image position, image orientation, and etc are decoded and stored in this class. Note that this simple DICOM decoder may not support some of the DICOM images. In this case, the user should extend the functionality of this class or write their own DICOM decoder.

Field Summary

Fields inherited from class com.sun.media.jai.codecimpl.SimpleRenderedImage

colorModel, height, minX, minY, properties, sampleModel, sources, tileGridXOffset, tileGridYOffset, tileHeight, tileWidth, width

Constructor Summary

DicomImage(java.lang.String fileName)
Constructor.

Method Summary

java.awt.image.Raster	computeTile(int tileX, int tileY) Create the single tile of this image.
int	getMaximum() Return the maximum pixel value in this image.
int	getMinimum() Return the minimum pixel value of this image.
double	getPixelSizeX() Return the pixel size in X-direction, in mm.
double	getPixelSizeY() Return the pixel size in Y-direction, in mm.
java.awt.image.Raster	getTile(int tileX, int tileY) Get the tile.

Methods inherited from class com.sun.media.jai.codecimpl.SimpleRenderedImage

copyData, getBounds, getColorModel, getData, getData, getHeight, getMaxTileX, getMaxTileY, getMaxX, getMaxY, getMinTileX, getMinTileY, getMinX, getMinY, getNumXTiles, getNumYTiles, getProperty, getPropertyNames, getPropertyNames, getSampleModel, getSources, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileWidth, getWidth, tileXToX, tileXToX, tileYToY, tileYToY, XToTileX, XToTileX, YToTileY, YToTileY

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DicomImage

public DicomImage(java.lang.String fileName)

Constructor. It accepts the name of a DICOM image file, loads the tag data and parses some of the important tags into instance variables, load the data into a short-type buffer and creates the sample model for this image.

Method Detail

getPixelSizeX

public double getPixelSizeX()

Return the pixel size in X-direction, in mm.

getPixelSizeY

public double getPixelSizeY()

Return the pixel size in Y-direction, in mm.

getMaximum

public int getMaximum()

Return the maximum pixel value in this image.

getMinimum

public int getMinimum()

Return the minimum pixel value of this image.

getTile

public java.awt.image.Raster getTile(int tileX,
                                     int tileY)

Get the tile. As for after reading, this image only have one tile. So for the other tile position, an exception is thrown.

Throws:

java.lang.IllegalArgumentException - When the tile position is not (0, 0).

computeTile

public java.awt.image.Raster computeTile(int tileX,
                                         int tileY)

Create the single tile of this image. The provided tile position is ignored. The sample model of the tile ratser is the sample model of this image. The location of the tile ratser is set to (0, 0).