maspack.image.dicom

Class DicomWindowPixelInterpolator

java.lang.Object

maspack.image.dicom.DicomPixelInterpolator

maspack.image.dicom.DicomWindowPixelInterpolator

All Implemented Interfaces:

java.lang.Cloneable, CompositeProperty, HasProperties, Clonable

public class DicomWindowPixelInterpolator
extends DicomPixelInterpolator

Window interpolator, rescales intensities based on a center intensity and width (as defined in the DICOM file format). The interpolator allows for multiple named windows, which can be read directly from a DICOM file.

Author:

Antonio

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_WINDOW_CENTER
static int	DEFAULT_WINDOW_WIDTH
static PropertyList	myProps

Constructor Summary

Constructors

Constructor and Description
DicomWindowPixelInterpolator() Create a default windowed interpolator, centered at intensity 2047 with width 2*2047.
DicomWindowPixelInterpolator(int center, int width) Constructs a new interpolator given a center intensity and width

Method Summary

Modifier and Type	Method and Description
void	addWindowPreset(java.lang.String preset, int center, int width) Adds a window preset to this interpolator
PropertyList	getAllPropertyInfo() Returns a list giving static information about all properties exported by this object.
Property	getProperty(java.lang.String name) Returns a property associated with a specified path name.
java.lang.String	getWindow()
int	getWindowCenter()
java.lang.String[]	getWindowNames()
StringRange	getWindowRange()
int	getWindowWidth()
int	interpGrayscale(double in, int ymin, int ymax) Interpolates a new grayscale value
void	interpGrayscaleToRGB(double gray, int ymin, int ymax, int[] out) Interpolates a grayscale value to RGB
void	interpRGB(double[] in, int ymin, int ymax, int[] out) Interpolates a new rgb value
int	interpRGBToGrayscale(double[] rgb, int ymin, int ymax) Interpolates an RGB value to grayscale
int	numWindows()
void	setWindow(java.lang.String preset) Sets the currently active preset window
void	setWindowCenter(int center) Sets the center of the window.
void	setWindowWidth(int width) Sets the width of the window.

Methods inherited from class maspack.image.dicom.DicomPixelInterpolator

clone, getPropertyHost, getPropertyInfo, getSubClasses, hasProperty, isWritable, scan, setPropertyHost, setPropertyInfo, write

Methods inherited from class java.lang.Object

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

Field Detail

myProps

public static PropertyList myProps

DEFAULT_WINDOW_CENTER

public static final int DEFAULT_WINDOW_CENTER

See Also:

Constant Field Values

DEFAULT_WINDOW_WIDTH

public static final int DEFAULT_WINDOW_WIDTH

See Also:

Constant Field Values

Constructor Detail

DicomWindowPixelInterpolator

public DicomWindowPixelInterpolator()

Create a default windowed interpolator, centered at intensity 2047 with width 2*2047.

DicomWindowPixelInterpolator

public DicomWindowPixelInterpolator(int center,
                                    int width)

Constructs a new interpolator given a center intensity and width

Parameters:

center - centre intensity

width - intensity width

Method Detail

getProperty

public Property getProperty(java.lang.String name)

Description copied from interface: HasProperties

Returns a property associated with a specified path name. All properties exported by this object must have a name which is a valid Java identifier. Specifying one of these names causes the corresponding Property to be returned. Handles to subproperties can also be obtained by delimiting the sub-property name(s) by '.' characters. A sub-property exists if the value of a property is itself an object which exports properties. It is only possible to obtain a sub-property handle if each of its ancestor properties exports their values by reference.

Specified by:

getProperty in interface HasProperties

Overrides:

getProperty in class DicomPixelInterpolator

Parameters:

name - name of the desired property or sub-property

Returns:

handle to the property

getAllPropertyInfo

public PropertyList getAllPropertyInfo()

Description copied from interface: HasProperties

Returns a list giving static information about all properties exported by this object.

Specified by:

getAllPropertyInfo in interface HasProperties

Overrides:

getAllPropertyInfo in class DicomPixelInterpolator

Returns:

static information for all exported properties

getWindow

public java.lang.String getWindow()

Returns:

the name of the currently active preset window

getWindowNames

public java.lang.String[] getWindowNames()

Returns:

list of preset window names

numWindows

public int numWindows()

Returns:

the number of window presets available

addWindowPreset

public void addWindowPreset(java.lang.String preset,
                            int center,
                            int width)

Adds a window preset to this interpolator

Parameters:

preset - name of the preset window

center - center intensity of window

width - width of window

setWindow

public void setWindow(java.lang.String preset)

Sets the currently active preset window

Parameters:

preset - name of preset

getWindowRange

public StringRange getWindowRange()

Returns:

a range of strings representing the various presets available (mostly for internal use in widgets)

setWindowCenter

public void setWindowCenter(int center)

Sets the center of the window. Note that if this differs from the value defined in a selected preset, then the window will automatically be changed to the 'custom' sized window

getWindowCenter

public int getWindowCenter()

Returns:

the middle intensity for the window

setWindowWidth

public void setWindowWidth(int width)

Sets the width of the window. Note that if the width differs from the currently active preset, then the window will automatically be switched to the 'custom' sized window

getWindowWidth

public int getWindowWidth()

Returns:

the window width

interpGrayscale

public int interpGrayscale(double in,
                           int ymin,
                           int ymax)

Description copied from class: DicomPixelInterpolator

Interpolates a new grayscale value

Specified by:

interpGrayscale in class DicomPixelInterpolator

Parameters:

in - input grayscale

ymin - minimum output

ymax - maximum output

Returns:

interpolated output

interpRGB

public void interpRGB(double[] in,
                      int ymin,
                      int ymax,
                      int[] out)

Description copied from class: DicomPixelInterpolator

Interpolates a new rgb value

Specified by:

interpRGB in class DicomPixelInterpolator

Parameters:

in - input rgb

ymin - minimum output value

ymax - maximum output value

out - output rgb

interpGrayscaleToRGB

public void interpGrayscaleToRGB(double gray,
                                 int ymin,
                                 int ymax,
                                 int[] out)

Description copied from class: DicomPixelInterpolator

Interpolates a grayscale value to RGB

Specified by:

interpGrayscaleToRGB in class DicomPixelInterpolator

Parameters:

gray - input grayscale

ymin - minimum output value

ymax - maximum output value

out - output rgb

interpRGBToGrayscale

public int interpRGBToGrayscale(double[] rgb,
                                int ymin,
                                int ymax)

Description copied from class: DicomPixelInterpolator

Interpolates an RGB value to grayscale

Specified by:

interpRGBToGrayscale in class DicomPixelInterpolator

Parameters:

rgb - input rgb

ymin - minimum output value

ymax - maximum output value

Returns:

output grayscale