maspack.image.dicom

Interface DicomPixelBuffer

All Known Implementing Classes:

BytePixelBuffer, DicomPixelBufferBase, RGBPixelBuffer, ShortPixelBuffer, UBytePixelBuffer, UShortPixelBuffer

public interface DicomPixelBuffer

Stores a set of pixels, either as grayscale bytes, grayscale shorts, or RGB bytes.

Author:

Antonio

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	DicomPixelBuffer.PixelType Type of storage

Method Summary

Modifier and Type	Method and Description
java.lang.Object	getBuffer()
double	getMaxIntensity()
double	getMinIntensity()
int	getNumChannels() Number of "color" channels in the buffer
int	getNumPixels()
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 x) Returns the raw rescaled value within the buffer at location x
double	getRescaleIntercept()
double	getRescaleSlope()
int	getValue(int x) Return the internal pixel value at x.
boolean	isSigned()

Method Detail

getPixelType

DicomPixelBuffer.PixelType getPixelType()

Returns:

the type of buffer

getNumPixels

int getNumPixels()

Returns:

number of pixels in the buffer

isSigned

boolean isSigned()

Returns:

whether or not the representation is signed (otherwise unsigned)

getPixels

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. 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.

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

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. 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.

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

double getMaxIntensity()

Returns:

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

getMinIntensity

double getMinIntensity()

Returns:

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

getRescaleSlope

double getRescaleSlope()

Returns:

the rescale slope

getRescaleIntercept

double getRescaleIntercept()

Returns:

the rescale intercept

getValue

int getValue(int x)

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

Parameters:

x - value index

Returns:

pixel value

getRescaledValue

double getRescaledValue(int x)

Returns the raw rescaled value within the buffer at location x

Parameters:

x - index within the buffer

Returns:

rescaled value

getNumChannels

int getNumChannels()

Number of "color" channels in the buffer

Returns:

number of channels

getBuffer

java.lang.Object getBuffer()

Returns:

the underlying buffer