maspack.image.dicom

Class DicomPixelBufferBase

java.lang.Object

maspack.image.dicom.DicomPixelBufferBase

All Implemented Interfaces:

DicomPixelBuffer

Direct Known Subclasses:

BytePixelBuffer, RGBPixelBuffer, ShortPixelBuffer, UBytePixelBuffer, UShortPixelBuffer

public abstract class DicomPixelBufferBase
extends java.lang.Object
implements DicomPixelBuffer

Nested Class Summary

Nested classes/interfaces inherited from interface maspack.image.dicom.DicomPixelBuffer

DicomPixelBuffer.PixelType

Method Summary

Modifier and Type	Method and Description
double	getMaxIntensity()
double	getMinIntensity()
int	getPixels(int x, int dx, int nx, DicomPixelBuffer.PixelType type, DicomPixelInterpolator interp, java.nio.ByteBuffer pixels) Populates a buffer of pixel values from those stored in this buffer, using a supplied interpolator.
int	getPixels(int x, int dx, int nx, DicomPixelBuffer.PixelType type, DicomPixelInterpolator interp, int[] pixels, int offset) Populates a buffer of pixel values from those stored in this buffer, using a supplied interpolator.
DicomPixelBuffer.PixelType	getPixelType()
double	getRescaledValue(int idx) Returns the raw rescaled value within the buffer at location x
double	getRescaleIntercept()
double	getRescaleSlope()
abstract int	getValue(int idx) Return the internal pixel value at idx.
boolean	isSigned()
void	setRescale(double slope, double intercept)

Methods inherited from class java.lang.Object

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

Methods inherited from interface maspack.image.dicom.DicomPixelBuffer

getBuffer, getNumChannels, getNumPixels

Method Detail

setRescale

public void setRescale(double slope,
                       double intercept)

getRescaleSlope

public double getRescaleSlope()

Specified by:

getRescaleSlope in interface DicomPixelBuffer

Returns:

the rescale slope

getRescaleIntercept

public double getRescaleIntercept()

Specified by:

getRescaleIntercept in interface DicomPixelBuffer

Returns:

the rescale intercept

getPixelType

public DicomPixelBuffer.PixelType getPixelType()

Specified by:

getPixelType in interface DicomPixelBuffer

Returns:

the type of buffer

isSigned

public boolean isSigned()

Specified by:

isSigned in interface DicomPixelBuffer

Returns:

whether or not the representation is signed (otherwise unsigned)

getValue

public abstract int getValue(int idx)

Return the internal pixel value at idx. For RGB buffers, colors are interlaced, so the ith pixel red value is actually at idx=3*i

Specified by:

getValue in interface DicomPixelBuffer

Parameters:

idx - value index

Returns:

pixel value

getRescaledValue

public double getRescaledValue(int idx)

Description copied from interface: DicomPixelBuffer

Returns the raw rescaled value within the buffer at location x

Specified by:

getRescaledValue in interface DicomPixelBuffer

Parameters:

idx - index within the buffer

Returns:

rescaled value

getPixels

public int getPixels(int x,
                     int dx,
                     int nx,
                     DicomPixelBuffer.PixelType type,
                     DicomPixelInterpolator interp,
                     java.nio.ByteBuffer pixels)

Description copied from interface: DicomPixelBuffer

Populates a buffer of pixel values from those stored in this buffer, using a supplied interpolator. The output format matches the stored type. Pixel values [x, x+dx, x+2*dx, ..., x+(nx-1)*dx] are copied into the output buffer.

Specified by:

getPixels in interface DicomPixelBuffer

Parameters:

x - starting pixel index in this buffer

dx - pixel step in this buffer

nx - number of pixels to interpolate from

type - type of pixels to output

interp - interpolator for converting pixels for output display

pixels - output buffer

Returns:

the number of bytes written to the buffer

getPixels

public int getPixels(int x,
                     int dx,
                     int nx,
                     DicomPixelBuffer.PixelType type,
                     DicomPixelInterpolator interp,
                     int[] pixels,
                     int offset)

Description copied from interface: DicomPixelBuffer

Populates a buffer of pixel values from those stored in this buffer, using a supplied interpolator. The output format matches the stored type. Pixel values [x, x+dx, x+2*dx, ..., x+(nx-1)*dx] are copied into the output buffer.

Specified by:

getPixels in interface DicomPixelBuffer

Parameters:

x - starting pixel index in this buffer

dx - pixel step in this buffer

nx - number of pixels to interpolate from

type - type of pixels to output

interp - interpolator for converting pixels for output display

pixels - output array

offset - offset in output array

Returns:

the next offset for writing to the buffer

getMaxIntensity

public double getMaxIntensity()

Specified by:

getMaxIntensity in interface DicomPixelBuffer

Returns:

the maximum scaled pixel intensity, for use in auto-windowing

getMinIntensity

public double getMinIntensity()

Specified by:

getMinIntensity in interface DicomPixelBuffer

Returns:

the minimum scaled pixel intensity, for use in auto-windowing