Inheritance diagram for FHT:

Public Member Functions
	FHT (ImageProcessor ip)

boolean	powerOf2Size ()

void	transform ()

void	inverseTransform ()

ImageProcessor	getPowerSpectrum ()

void	swapQuadrants (ImageProcessor ip)

void	swapQuadrants ()

FHT	multiply (FHT fht)

FHT	conjugateMultiply (FHT fht)

FHT	divide (FHT fht)

void	setShowProgress (boolean showProgress)

FHT	getCopy ()

String	toString ()

Public Member Functions inherited from FloatProcessor
	FloatProcessor (int width, int height, float[] pixels, ColorModel cm)

	FloatProcessor (int width, int height)

	FloatProcessor (int width, int height, int[] pixels)

	FloatProcessor (int width, int height, double[] pixels)

void	findMinAndMax ()

void	setMinAndMax (double min, double max)

void	resetMinAndMax ()

double	getMin ()

double	getMax ()

Image	createImage ()

ImageProcessor	createProcessor (int width, int height)

void	snapshot ()

void	reset ()

void	reset (ImageProcessor mask)

int	getPixel (int x, int y)

int[]	getPixel (int x, int y, int[] iArray)

void	putPixel (int x, int y, int[] iArray)

double	getInterpolatedPixel (double x, double y)

void	putPixel (int x, int y, int value)

void	putPixelValue (int x, int y, double value)

float	getPixelValue (int x, int y)

void	drawPixel (int x, int y)

Object	getPixels ()

Object	getPixelsCopy ()

void	setPixels (Object pixels)

void	copyBits (ImageProcessor ip, int xloc, int yloc, int mode)

void	applyTable (int[] lut)

void	invert ()

void	add (int value)

void	add (double value)

void	multiply (double value)

void	and (int value)

void	or (int value)

void	xor (int value)

void	gamma (double value)

void	log ()

void	sqr ()

void	sqrt ()

void	min (double value)

void	max (double value)

void	fill ()

void	fill (ImageProcessor mask)

void	convolve3x3 (int[] kernel)

void	filter (int type)

void	rotate (double angle)

void	flipVertical ()

void	noise (double range)

ImageProcessor	crop ()

void	scale (double xScale, double yScale)

ImageProcessor	resize (int dstWidth, int dstHeight)

void	setColor (Color color)

void	setValue (double value)

void	setThreshold (double minThreshold, double maxThreshold, int lutUpdate)

void	convolve (float[] kernel, int kernelWidth, int kernelHeight)

void	threshold (int level)

void	autoThreshold ()

void	medianFilter ()

int[]	getHistogram ()

void	erode ()

void	dilate ()

Public Member Functions inherited from ImageProcessor
int	getWidth ()

int	getHeight ()

ColorModel	getColorModel ()

void	setColorModel (ColorModel cm)

void	invertLut ()

int	getBestIndex (Color c)

boolean	isInvertedLut ()

boolean	isColorLut ()

boolean	isPseudoColorLut ()

void	setColor (int value)

void	resetMinAndMax ()

void	setThreshold (double minThreshold, double maxThreshold, int lutUpdate)

void	resetThreshold ()

double	getMinThreshold ()

double	getMaxThreshold ()

void	setRoi (Rectangle roi)

void	setRoi (int x, int y, int rwidth, int rheight)

void	setRoi (ij.gui.Roi roi)

void	setRoi (Polygon roi)

void	resetRoi ()

Rectangle	getRoi ()

void	setMask (ImageProcessor mask)

ImageProcessor	getMask ()

byte[]	getMaskArray ()

void	setProgressBar (ProgressBar pb)

void	setInterpolate (boolean interpolate)

boolean	getInterpolate ()

boolean	isKillable ()

double[]	getLine (double x1, double y1, double x2, double y2)

void	getRow (int x, int y, int[] data, int length)

void	getColumn (int x, int y, int[] data, int length)

void	putRow (int x, int y, int[] data, int length)

void	putColumn (int x, int y, int[] data, int length)

void	moveTo (int x, int y)

void	setLineWidth (int width)

void	lineTo (int x2, int y2)

void	drawLine (int x1, int y1, int x2, int y2)

void	drawRect (int x, int y, int width, int height)

void	drawPolygon (Polygon p)

void	fillPolygon (Polygon p)

void	drawDot2 (int x, int y)

void	drawDot (int xcenter, int ycenter)

void	drawString (String s)

void	drawString (String s, int x, int y)

void	setJustification (int justification)

void	setFont (Font font)

void	setAntialiasedText (boolean antialiasedText)

int	getStringWidth (String s)

FontMetrics	getFontMetrics ()

void	smooth ()

void	sharpen ()

void	findEdges ()

void	flipHorizontal ()

ImageProcessor	rotateRight ()

ImageProcessor	rotateLeft ()

void	insert (ImageProcessor ip, int xloc, int yloc)

String	toString ()

void	fill ()

void	setCalibrationTable (float[] cTable)

void	setHistogramSize (int size)

int	getHistogramSize ()

void	setHistogramRange (double histMin, double histMax)

double	getHistogramMin ()

double	getHistogramMax ()

int[]	getPixel (int x, int y, int[] iArray)

void	putPixel (int x, int y, int[] iArray)

double	getInterpolatedValue (double x, double y)

void	invert ()

void	add (int value)

void	add (double value)

void	multiply (double value)

void	and (int value)

void	or (int value)

void	xor (int value)

void	gamma (double value)

void	log ()

void	sqr ()

void	sqrt ()

void	min (double value)

void	max (double value)

ImageProcessor	duplicate ()

void	setLutAnimation (boolean lutAnimation)

ImageProcessor	convertToByte (boolean doScaling)

ImageProcessor	convertToShort (boolean doScaling)

ImageProcessor	convertToFloat ()

ImageProcessor	convertToRGB ()

void	autoThreshold ()

int	getAutoThreshold ()

int	getAutoThreshold (int[] histogram)

void	setClipRect (Rectangle clipRect)

Data Fields
boolean	quadrantSwapNeeded

ColorProcessor	rgb

int	originalWidth

int	originalHeight

int	originalBitDepth

ColorModel	originalColorModel

Additional Inherited Members
Static Public Attributes inherited from ImageProcessor
static final int	BLACK = 0xFF000000

static final double	NO_THRESHOLD = -808080.0

static final int	LEFT_JUSTIFY = 0

static final int	CENTER_JUSTIFY = 1

static final int	RIGHT_JUSTIFY = 2

static final int	RED_LUT =0

Protected Member Functions inherited from ImageProcessor
void	showProgress (double percentDone)

void	hideProgress ()

void	makeDefaultColorModel ()

String	maskSizeError (ImageProcessor mask)

Protected Attributes inherited from ImageProcessor
int	lineWidth = 1

int	cx

Font	font

FontMetrics	fontMetrics

boolean	antialiasedText

boolean	boldFont

int	width

int	height

int	roiX

int	xMin

ColorModel	baseCM

ColorModel	cm

byte[]	rLUT1

byte[]	rLUT2

boolean	interpolate

double	minThreshold =NO_THRESHOLD

int	histogramSize = 256

double	histogramMin

float[]	cTable

boolean	lutAnimation

MemoryImageSource	source

Image	img

boolean	newPixels

Color	drawingColor = Color.black

int	clipXMin

int	justification = LEFT_JUSTIFY

boolean	inversionTested = false

boolean	invertedLut

Detailed Description

This class contains a Java implementation of the Fast Hartley Transform. It is based on Pascal code in NIH Image contributed by Arlo Reeves (http://rsb.info.nih.gov/ij/docs/ImageFFT/). The Fast Hartley Transform was restricted by U.S. Patent No. 4,646,256, but was placed in the public domain by Stanford University in 1995 and is now freely available.

Definition at line 14 of file FHT.java.

Constructor & Destructor Documentation

FHT ( ImageProcessor ip )

inline

Constructs a FHT object from an ImageProcessor. Byte, short and RGB images are converted to float. Float images are duplicated.

Definition at line 38 of file FHT.java.

Member Function Documentation

FHT conjugateMultiply ( FHT fht )

inline

Returns the image resulting from the point by point Hartley conjugate multiplication of this image and the specified image. Both images are assumed to be in the frequency domain. Conjugate multiplication in the frequency domain is equivalent to correlation in the space domain.

Definition at line 408 of file FHT.java.

FHT divide ( FHT fht )

inline

Returns the image resulting from the point by point Hartley division of this image by the specified image. Both images are assumed to be in the frequency domain. Division in the frequency domain is equivalent to deconvolution in the space domain.

Definition at line 437 of file FHT.java.

FHT getCopy ( )

inline

Returns a clone of this FHT.

Definition at line 465 of file FHT.java.

ImageProcessor getPowerSpectrum ( )

inline

Returns an 8-bit power spectrum, log-scaled to 1-254. The image in this FHT is assumed to be in the frequency domain.

Definition at line 275 of file FHT.java.

void inverseTransform ( )

inline

Performs an inverse transform, converting this image into the space domain. The image contained in this FHT must be square and its width must be a power of 2.

Definition at line 60 of file FHT.java.

FHT multiply ( FHT fht )

inline

Returns the image resulting from the point by point Hartley multiplication of this image and the specified image. Both images are assumed to be in the frequency domain. Multiplication in the frequency domain is equivalent to convolution in the space domain.

Definition at line 400 of file FHT.java.

boolean powerOf2Size ( )

inline

Returns true of this FHT contains a square image with a width that is a power of two.

Definition at line 46 of file FHT.java.

void setShowProgress ( boolean showProgress )

inline

Enables/disables display of the progress bar during transforms.

Definition at line 460 of file FHT.java.

void swapQuadrants ( ImageProcessor ip )

inline

Swap quadrants 1 and 3 and 2 and 4 of the specified ImageProcessor so the power spectrum origin is at the center of the image.

    2 1
    3 4

Definition at line 360 of file FHT.java.

void swapQuadrants ( )

inline

Swap quadrants 1 and 3 and 2 and 4 of the image contained in this FHT.

Definition at line 381 of file FHT.java.

String toString ( )

inline

Returns a string containing information about this FHT.

Definition at line 479 of file FHT.java.

void transform ( )

inline

Performs a foreward transform, converting this image into the frequency domain. The image contained in this FHT must be square and its width must be a power of 2.

Definition at line 54 of file FHT.java.

Field Documentation

int originalBitDepth

Used by the FFT class.

Definition at line 32 of file FHT.java.

ColorModel originalColorModel

Used by the FFT class.

Definition at line 34 of file FHT.java.

int originalHeight

Used by the FFT class.

Definition at line 30 of file FHT.java.

int originalWidth

Used by the FFT class.

Definition at line 28 of file FHT.java.

boolean quadrantSwapNeeded

Used by the FFT class.

Definition at line 24 of file FHT.java.

ColorProcessor rgb

Used by the FFT class.

Definition at line 26 of file FHT.java.

The documentation for this class was generated from the following file:

/Users/webmaster/Desktop/squiz_matrix/fudge/image_editor/src/ij/process/FHT.java

Public Member Functions

Data Fields

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Field Documentation