com.vistech.imageviewer
Class WindowLevel

java.lang.Object
  |
  +--com.vistech.imageviewer.WindowLevel

public class WindowLevel

extends java.lang.Object

Implements the Window/Level feature.

Version:

1.0 4 Dec 2001

Author:

Lawrence Rodrigues

Field Summary

protected ImageDisplay	imageCanvas
protected int	level
protected int	LUT_SIZE
protected int	lutSize
protected int	MAX_SCREEN_VALUE
protected int	maxValue
protected int	MIN_SCREEN_VALUE
protected int	minValue
protected int	window
protected java.awt.image.BufferedImage	wlImage

Constructor Summary

WindowLevel(ImageDisplay imageCanvas)
The WindowLevel constructor.

Method Summary

java.awt.image.ByteLookupTable	createByteLookupTable(int win, int lev) Creates a lookup table for the specified window width and level.
int	getLevel()
int	getLUTSize()
int	getWindow()
void	setLevel(int lev) Sets the level.
void	setLUTSize(int size) Sets the size of the lookup table.
void	setWindow(int win) Sets the window width.
void	setWindowLevel(int win, int lev) Sets the window width and level.

Methods inherited from class java.lang.Object

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

Field Detail

minValue

protected int minValue

maxValue

protected int maxValue

MIN_SCREEN_VALUE

protected int MIN_SCREEN_VALUE

MAX_SCREEN_VALUE

protected int MAX_SCREEN_VALUE

LUT_SIZE

protected int LUT_SIZE

lutSize

protected int lutSize

wlImage

protected java.awt.image.BufferedImage wlImage

window

protected int window

level

protected int level

imageCanvas

protected ImageDisplay imageCanvas

Constructor Detail

WindowLevel

public WindowLevel(ImageDisplay imageCanvas)

The WindowLevel constructor.

Parameters:

imageCanvas - the canvas in which the image is drawn.

Method Detail

setLUTSize

public void setLUTSize(int size)

Sets the size of the lookup table.

Parameters:

size - the lookup table size.

getLUTSize

public int getLUTSize()

Returns:

the the LUT size;

setWindow

public void setWindow(int win)

Sets the window width.

Parameters:

win - width of the window.

getWindow

public int getWindow()

Returns:

the window value;

setLevel

public void setLevel(int lev)

Sets the level.

Parameters:

lev - the level.

getLevel

public int getLevel()

Returns:

the level value;

setWindowLevel

public void setWindowLevel(int win,
                           int lev)

Sets the window width and level. This methods calls the createByteLookupTable()to create a lookup table for the window and level values specified in the input. Using this lookup table, creates a LookupOp object which is used for applying the lookup table to the image displayed on the canvas.This method then displays the resulting image on the canvas.

Parameters:

win - width of the window.

lev - the level.

See Also:

createByteLookupTable()

createByteLookupTable

public java.awt.image.ByteLookupTable createByteLookupTable(int win,
                                                            int lev)

Creates a lookup table for the specified window width and level.

Parameters:

win - width of the window.

lev - the level.