ij.process
Class ColorProcessor

java.lang.Object
  ij.process.ImageProcessor
      ij.process.ColorProcessor

public class ColorProcessor
extends ImageProcessor

This is an 32-bit RGB image and methods that operate on that image.. Based on the ImageProcessor class from "KickAss Java Programming" by Tonny Espeset (http://www.sn.no/~espeset).

Field Summary

protected int[]	pixels
static int	RGB_DILATE
static int	RGB_ERODE
static int	RGB_FIND_EDGES
static int	RGB_MEDIAN
static int	RGB_NOISE
static int	RGB_RESIZE
static int	RGB_ROTATE
static int	RGB_SCALE
static int	RGB_THRESHOLD
static int	RGB_TRANSLATE
protected int[]	snapshotPixels

Fields inherited from class ij.process.ImageProcessor

antialiasedText, baseCM, BICUBIC, BILINEAR, BLACK, BLACK_AND_WHITE_LUT, BLUR_MORE, bLUT1, bLUT2, boldFont, CENTER_JUSTIFY, clipXMax, clipXMin, clipYMax, clipYMin, cm, cm2, CONVOLVE, cTable, cx, cy, defaultColorModel, drawingColor, FIND_EDGES, fmImage, font, fontMetrics, gLUT1, gLUT2, height, histogramMax, histogramMin, histogramSize, image, img, interpolate, interpolationMethod, inversionTested, invertedLut, ISODATA, ISODATA2, justification, LEFT_JUSTIFY, lineWidth, lutAnimation, lutUpdateMode, MAX, maxThreshold, MEDIAN_FILTER, MIN, minMaxSet, minThreshold, NEAREST_NEIGHBOR, newPixels, NO_LUT_UPDATE, NO_THRESHOLD, NONE, OVER_UNDER_LUT, raster, RED_LUT, RIGHT_JUSTIFY, rLUT1, rLUT2, roiHeight, roiWidth, roiX, roiY, sampleModel, snapshotHeight, snapshotWidth, source, width, xMax, xMin, yMax, yMin

Constructor Summary

ColorProcessor(java.awt.Image img)
Creates a ColorProcessor from an AWT Image.

ColorProcessor(int width, int height)
Creates a blank ColorProcessor of the specified dimensions.

ColorProcessor(int width, int height, int[] pixels)
Creates a ColorProcessor from a pixel array.

Method Summary

void	applyTable(int[] lut) Transforms the image or ROI using a lookup table.
void	applyTable(int[] lut, int channels)
void	autoThreshold() Converts the image to binary using an automatically determined threshold.
void	convolve(float[] kernel, int kernelWidth, int kernelHeight) Performs a convolution operation using the specified kernel.
void	convolve3x3(int[] kernel) 3x3 convolution contributed by Glynne Casteel.
void	copyBits(ImageProcessor ip, int xloc, int yloc, int mode) Copies the image contained in 'ip' to (xloc, yloc) using one of the transfer modes defined in the Blitter interface.
java.awt.Image	createImage() Returns a copy of this image is the form of an AWT Image.
ImageProcessor	createProcessor(int width, int height) Returns a new, blank ColorProcessor with the specified width and height.
ImageProcessor	crop() Creates a new processor containing an image that corresponds to the current ROI.
void	dilate() Dilates the image or ROI using a 3x3 minimum filter.
void	drawPixel(int x, int y) Draws a pixel in the current foreground color.
ImageProcessor	duplicate() Returns a duplicate of this image.
void	erode() Erodes the image or ROI using a 3x3 maximum filter.
void	fill() Fills the current rectangular ROI.
void	fill(ImageProcessor mask) Fills pixels that are within roi and part of the mask.
void	filter(int type) 3x3 unweighted smoothing.
void	filterRGB(int type, double arg) Performs the specified filter on the red, green and blue planes of this image.
void	findEdges() Finds edges in the image or ROI using a Sobel operator.
void	flipVertical() Flips the image or ROI vertically.
int	get(int index)
int	get(int x, int y) This is a faster version of getPixel() that does not do bounds checking.
double	getBackgroundValue() Returns the background fill value.
int	getBestIndex(java.awt.Color c) Always returns 0 since RGB images do not use LUTs.
FloatProcessor	getBrightness() Returns brightness as a FloatProcessor.
java.awt.Color	getColor(int x, int y)
float	getf(int index)
float	getf(int x, int y)
int[]	getHistogram() Returns the histogram of the image or ROI.
int[]	getHistogram(ImageProcessor mask)
void	getHSB(byte[] H, byte[] S, byte[] B) Returns hue, saturation and brightness in 3 byte arrays.
ImageStack	getHSBStack() Returns an ImageStack with three 8-bit slices, representing hue, saturation and brightness
double	getInterpolatedPixel(double x, double y) Calls getPixelValue(x,y).
int	getInterpolatedRGBPixel(double x, double y) Uses bilinear interpolation to find the pixel value at real coordinates (x,y).
double	getMax() Returns the largest displayed pixel value.
double	getMin() Returns the smallest displayed pixel value.
int	getNChannels() Returns the number of color channels of the image, i.e., 3.
int	getPixel(int x, int y) Returns the value of the pixel at (x,y).
int[]	getPixel(int x, int y, int[] iArray) Returns the 3 samples for the pixel at (x,y) in an array of int.
int	getPixelInterpolated(double x, double y) Uses the current interpolation method to find the pixel value at real coordinates (x,y).
java.lang.Object	getPixels() Returns a reference to the int array containing this image's pixel data.
java.lang.Object	getPixelsCopy() Returns a copy of the pixel data.
float	getPixelValue(int x, int y) Converts the specified pixel to grayscale using the formula g=(r+g+b)/3 and returns it as a float.
void	getRGB(byte[] R, byte[] G, byte[] B) Returns the red, green and blue planes as 3 byte arrays.
java.lang.Object	getSnapshotPixels() Returns a reference to the snapshot pixel array.
static double[]	getWeightingFactors() Returns the three weighting factors used by getPixelValue(), getHistogram() and convertToByte() to do color conversions.
void	invertLut() Does nothing since RGB images do not use LUTs.
boolean	isInvertedLut() Always returns false since RGB images do not use LUTs.
ImageProcessor	makeThumbnail(int width2, int height2, double smoothFactor) Uses averaging to creates a new ColorProcessor containing a scaled copy of this image or selection.
void	medianFilter() A 3x3 median filter.
void	noise(double range) Adds random noise to the image or ROI.
void	putPixel(int x, int y, int value) Stores the specified value at (x,y).
void	putPixel(int x, int y, int[] iArray) Sets a pixel in the image using a 3 element (R, G and B) int array of samples.
void	putPixelValue(int x, int y, double value) Stores the specified real grayscale value at (x,y).
void	reset() Restores the pixel data from the snapshot (undo) buffer.
void	reset(ImageProcessor mask) Restores pixels from the snapshot buffer that are within the rectangular roi but not part of the mask.
ImageProcessor	resize(int dstWidth, int dstHeight) Creates a new ColorProcessor containing a scaled copy of this image or selection.
void	rotate(double angle) Rotates the image or ROI 'angle' degrees clockwise.
void	scale(double xScale, double yScale) Scales the image or selection using the specified scale factors.
void	set(int index, int value)
void	set(int x, int y, int value) This is a faster version of putPixel() that does not clip out of range values and does not do bounds checking.
void	setBackgroundValue(double value) Sets the background fill value, where value is interpreted as an RGB int.
void	setBrightness(FloatProcessor fp) Updates the brightness using the pixels in the specified FloatProcessor).
void	setColor(java.awt.Color color) Sets the foreground color.
void	setColor(int color) Sets the fill/draw color, where color is an RGB int.
void	setf(int index, float value)
void	setf(int x, int y, float value)
void	setHSB(byte[] H, byte[] S, byte[] B) Sets the current pixels from 3 byte arrays (hue, saturation and brightness).
void	setMinAndMax(double min, double max) Uses a table look-up to map the pixels in this image from min-max to 0-255.
void	setMinAndMax(double min, double max, int channels)
void	setPixels(int channelNumber, FloatProcessor fp) Sets the pixels of one color channel from a FloatProcessor.
void	setPixels(java.lang.Object pixels) Sets a new pixel array for the image.
void	setRGB(byte[] R, byte[] G, byte[] B) Sets the current pixels from 3 byte arrays (reg, green, blue).
void	setSnapshotPixels(java.lang.Object pixels) Sets a new pixel array for the snapshot (undo) buffer.
void	setValue(double value) Sets the default fill/draw value, where value is interpreted as an RGB int.
static void	setWeightingFactors(double rFactor, double gFactor, double bFactor) Sets the weighting factors used by getPixelValue(), getHistogram() and convertToByte() to do color conversions.
void	snapshot() Makes a copy of this image's pixel data that can be later restored using reset() or reset(mask).
void	threshold(int level) Not implemented.
FloatProcessor	toFloat(int channelNumber, FloatProcessor fp) Returns a FloatProcessor with one color channel of the image.
void	updateComposite(int[] rgbPixels, int channel) CompositeImage calls this method to generate an updated color image.

Methods inherited from class ij.process.ImageProcessor

abs, add, add, and, convertToByte, convertToFloat, convertToRGB, convertToShort, draw, drawDot, drawDot2, drawLine, drawOval, drawPolygon, drawRect, drawString, drawString, exp, fill, fillOutside, fillOval, fillPolygon, flipHorizontal, gamma, getAutoThreshold, getAutoThreshold, getBicubicInterpolatedPixel, getBufferedImage, getCalibrationTable, getColorModel, getColumn, getCurrentColorModel, getDefaultColorModel, getFloatArray, getFont, getFontMetrics, getHeight, getHistogramMax, getHistogramMin, getHistogramSize, getIndexSampleModel, getIntArray, getInterpolate, getInterpolatedValue, getInterpolationMethods, getLine, getLineWidth, getLutUpdateMode, getMask, getMaskArray, getMaxThreshold, getMinThreshold, getNeighborhood, getPixelCount, getRoi, getRow, getStatistics, getStringWidth, getWidth, hideProgress, insert, invert, isBinary, isColorLut, isDefaultLut, isKillable, isPseudoColorLut, lineTo, log, makeDefaultColorModel, maskSizeError, max, maxValue, min, minValue, moveTo, multiply, or, putColumn, putRow, resetBinaryThreshold, resetMinAndMax, resetRoi, resetThreshold, resize, rotateLeft, rotateRight, setAntialiasedText, setAutoThreshold, setAutoThreshold, setAutoThreshold, setBinaryThreshold, setCalibrationTable, setClipRect, setColorModel, setFloatArray, setFont, setHistogramRange, setHistogramSize, setIntArray, setInterpolate, setInterpolationMethod, setJustification, setLineWidth, setLutAnimation, setMask, setOverColor, setProgressBar, setRoi, setRoi, setRoi, setRoi, setSnapshotCopyMode, setThreshold, setUnderColor, setUseBicubic, sharpen, showProgress, smooth, sqr, sqrt, toString, translate, translate, xor

Methods inherited from class java.lang.Object

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

Field Detail

pixels

protected int[] pixels

snapshotPixels

protected int[] snapshotPixels

RGB_NOISE

public static final int RGB_NOISE

See Also:

Constant Field Values

RGB_MEDIAN

public static final int RGB_MEDIAN

See Also:

Constant Field Values

RGB_FIND_EDGES

public static final int RGB_FIND_EDGES

See Also:

Constant Field Values

RGB_ERODE

public static final int RGB_ERODE

See Also:

Constant Field Values

RGB_DILATE

public static final int RGB_DILATE

See Also:

Constant Field Values

RGB_THRESHOLD

public static final int RGB_THRESHOLD

See Also:

Constant Field Values

RGB_ROTATE

public static final int RGB_ROTATE

See Also:

Constant Field Values

RGB_SCALE

public static final int RGB_SCALE

See Also:

Constant Field Values

RGB_RESIZE

public static final int RGB_RESIZE

See Also:

Constant Field Values

RGB_TRANSLATE

public static final int RGB_TRANSLATE

See Also:

Constant Field Values

Constructor Detail

ColorProcessor

public ColorProcessor(java.awt.Image img)

Creates a ColorProcessor from an AWT Image.

ColorProcessor

public ColorProcessor(int width,
                      int height)

Creates a blank ColorProcessor of the specified dimensions.

ColorProcessor

public ColorProcessor(int width,
                      int height,
                      int[] pixels)

Creates a ColorProcessor from a pixel array.

Method Detail

createImage

public java.awt.Image createImage()

Description copied from class: ImageProcessor

Returns a copy of this image is the form of an AWT Image.

Specified by:

createImage in class ImageProcessor

createProcessor

public ImageProcessor createProcessor(int width,
                                      int height)

Returns a new, blank ColorProcessor with the specified width and height.

Specified by:

createProcessor in class ImageProcessor

getColor

public java.awt.Color getColor(int x,
                               int y)

setColor

public void setColor(java.awt.Color color)

Sets the foreground color.

Specified by:

setColor in class ImageProcessor

setColor

public void setColor(int color)

Sets the fill/draw color, where color is an RGB int.

Overrides:

setColor in class ImageProcessor

setValue

public void setValue(double value)

Sets the default fill/draw value, where value is interpreted as an RGB int.

Specified by:

setValue in class ImageProcessor

setBackgroundValue

public void setBackgroundValue(double value)

Sets the background fill value, where value is interpreted as an RGB int.

Specified by:

setBackgroundValue in class ImageProcessor

getBackgroundValue

public double getBackgroundValue()

Returns the background fill value.

Specified by:

getBackgroundValue in class ImageProcessor

getMin

public double getMin()

Returns the smallest displayed pixel value.

Specified by:

getMin in class ImageProcessor

getMax

public double getMax()

Returns the largest displayed pixel value.

Specified by:

getMax in class ImageProcessor

setMinAndMax

public void setMinAndMax(double min,
                         double max)

Uses a table look-up to map the pixels in this image from min-max to 0-255.

Specified by:

setMinAndMax in class ImageProcessor

setMinAndMax

public void setMinAndMax(double min,
                         double max,
                         int channels)

snapshot

public void snapshot()

Description copied from class: ImageProcessor

Makes a copy of this image's pixel data that can be later restored using reset() or reset(mask).

Specified by:

snapshot in class ImageProcessor

See Also:

ImageProcessor.reset(), ImageProcessor.reset(ImageProcessor)

reset

public void reset()

Description copied from class: ImageProcessor

Restores the pixel data from the snapshot (undo) buffer.

Specified by:

reset in class ImageProcessor

reset

public void reset(ImageProcessor mask)

Description copied from class: ImageProcessor

Restores pixels from the snapshot buffer that are within the rectangular roi but not part of the mask.

Specified by:

reset in class ImageProcessor

setSnapshotPixels

public void setSnapshotPixels(java.lang.Object pixels)

Description copied from class: ImageProcessor

Sets a new pixel array for the snapshot (undo) buffer.

Specified by:

setSnapshotPixels in class ImageProcessor

getSnapshotPixels

public java.lang.Object getSnapshotPixels()

Returns a reference to the snapshot pixel array. Used by the ContrastAdjuster.

Specified by:

getSnapshotPixels in class ImageProcessor

fill

public void fill(ImageProcessor mask)

Fills pixels that are within roi and part of the mask. Does nothing if the mask is not the same as the the ROI.

Specified by:

fill in class ImageProcessor

See Also:

ImageProcessor.setColor(Color), ImageProcessor.setValue(double), ImageProcessor.getMask(), ImageProcessor.fill(Roi)

getPixelsCopy

public java.lang.Object getPixelsCopy()

Returns a copy of the pixel data. Or returns a reference to the snapshot buffer if it is not null and 'snapshotCopyMode' is true.

Specified by:

getPixelsCopy in class ImageProcessor

See Also:

ImageProcessor.snapshot(), ImageProcessor.setSnapshotCopyMode(boolean)

getPixel

public int getPixel(int x,
                    int y)

Description copied from class: ImageProcessor

Returns the value of the pixel at (x,y). For RGB images, the argb values are packed in an int. For float images, the the value must be converted using Float.intBitsToFloat(). Returns zero if either the x or y coodinate is out of range.

Specified by:

getPixel in class ImageProcessor

get

public final int get(int x,
                     int y)

Description copied from class: ImageProcessor

This is a faster version of getPixel() that does not do bounds checking.

Specified by:

get in class ImageProcessor

set

public final void set(int x,
                      int y,
                      int value)

Description copied from class: ImageProcessor

This is a faster version of putPixel() that does not clip out of range values and does not do bounds checking.

Specified by:

set in class ImageProcessor

get

public final int get(int index)

Specified by:

get in class ImageProcessor

set

public final void set(int index,
                      int value)

Specified by:

set in class ImageProcessor

getf

public final float getf(int x,
                        int y)

Specified by:

getf in class ImageProcessor

setf

public final void setf(int x,
                       int y,
                       float value)

Specified by:

setf in class ImageProcessor

getf

public final float getf(int index)

Specified by:

getf in class ImageProcessor

setf

public final void setf(int index,
                       float value)

Specified by:

setf in class ImageProcessor

getPixel

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

Returns the 3 samples for the pixel at (x,y) in an array of int. Returns zeros if the the coordinates are not in bounds. iArray is an optional preallocated array.

Overrides:

getPixel in class ImageProcessor

putPixel

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

Sets a pixel in the image using a 3 element (R, G and B) int array of samples.

Overrides:

putPixel in class ImageProcessor

getInterpolatedPixel

public double getInterpolatedPixel(double x,
                                   double y)

Calls getPixelValue(x,y).

Specified by:

getInterpolatedPixel in class ImageProcessor

getPixelInterpolated

public final int getPixelInterpolated(double x,
                                      double y)

Description copied from class: ImageProcessor

Uses the current interpolation method to find the pixel value at real coordinates (x,y). For RGB images, the argb values are packed in an int. For float images, the value must be converted using Float.intBitsToFloat(). Returns zero if the (x, y) is not inside the image.

Specified by:

getPixelInterpolated in class ImageProcessor

putPixel

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

Stores the specified value at (x,y).

Specified by:

putPixel in class ImageProcessor

putPixelValue

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

Stores the specified real grayscale value at (x,y). Does nothing if (x,y) is outside the image boundary. The value is clamped to be in the range 0-255.

Specified by:

putPixelValue in class ImageProcessor

getPixelValue

public float getPixelValue(int x,
                           int y)

Converts the specified pixel to grayscale using the formula g=(r+g+b)/3 and returns it as a float. Call setWeightingFactors() to specify different conversion factors.

Specified by:

getPixelValue in class ImageProcessor

drawPixel

public void drawPixel(int x,
                      int y)

Draws a pixel in the current foreground color.

Specified by:

drawPixel in class ImageProcessor

getPixels

public java.lang.Object getPixels()

Returns a reference to the int array containing this image's pixel data.

Specified by:

getPixels in class ImageProcessor

setPixels

public void setPixels(java.lang.Object pixels)

Description copied from class: ImageProcessor

Sets a new pixel array for the image. The length of the array must be equal to width*height. Use setSnapshotPixels(null) to clear the snapshot buffer.

Specified by:

setPixels in class ImageProcessor

getHSB

public void getHSB(byte[] H,
                   byte[] S,
                   byte[] B)

Returns hue, saturation and brightness in 3 byte arrays.

getHSBStack

public ImageStack getHSBStack()

Returns an ImageStack with three 8-bit slices, representing hue, saturation and brightness

getBrightness

public FloatProcessor getBrightness()

Returns brightness as a FloatProcessor.

getRGB

public void getRGB(byte[] R,
                   byte[] G,
                   byte[] B)

Returns the red, green and blue planes as 3 byte arrays.

setRGB

public void setRGB(byte[] R,
                   byte[] G,
                   byte[] B)

Sets the current pixels from 3 byte arrays (reg, green, blue).

setHSB

public void setHSB(byte[] H,
                   byte[] S,
                   byte[] B)

Sets the current pixels from 3 byte arrays (hue, saturation and brightness).

setBrightness

public void setBrightness(FloatProcessor fp)

Updates the brightness using the pixels in the specified FloatProcessor).

copyBits

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

Copies the image contained in 'ip' to (xloc, yloc) using one of the transfer modes defined in the Blitter interface.

Specified by:

copyBits in class ImageProcessor

applyTable

public void applyTable(int[] lut)

Description copied from class: ImageProcessor

Transforms the image or ROI using a lookup table. The length of the table must be 256 for byte images and 65536 for short images. RGB and float images are not supported.

Specified by:

applyTable in class ImageProcessor

applyTable

public void applyTable(int[] lut,
                       int channels)

fill

public void fill()

Fills the current rectangular ROI.

Overrides:

fill in class ImageProcessor

See Also:

ImageProcessor.setColor(Color), ImageProcessor.setValue(double), ImageProcessor.fill(Roi)

filterRGB

public void filterRGB(int type,
                      double arg)

Performs the specified filter on the red, green and blue planes of this image.

noise

public void noise(double range)

Description copied from class: ImageProcessor

Adds random noise to the image or ROI.

Specified by:

noise in class ImageProcessor

Parameters:

range - the range of random numbers

medianFilter

public void medianFilter()

Description copied from class: ImageProcessor

A 3x3 median filter. Requires 8-bit or RGB image.

Specified by:

medianFilter in class ImageProcessor

findEdges

public void findEdges()

Description copied from class: ImageProcessor

Finds edges in the image or ROI using a Sobel operator.

Overrides:

findEdges in class ImageProcessor

erode

public void erode()

Description copied from class: ImageProcessor

Erodes the image or ROI using a 3x3 maximum filter. Requires 8-bit or RGB image.

Specified by:

erode in class ImageProcessor

dilate

public void dilate()

Description copied from class: ImageProcessor

Dilates the image or ROI using a 3x3 minimum filter. Requires 8-bit or RGB image.

Specified by:

dilate in class ImageProcessor

autoThreshold

public void autoThreshold()

Description copied from class: ImageProcessor

Converts the image to binary using an automatically determined threshold. For byte and short images, converts to binary using an automatically determined threshold. For RGB images, converts each channel to binary. For float images, does nothing.

Overrides:

autoThreshold in class ImageProcessor

scale

public void scale(double xScale,
                  double yScale)

Scales the image or selection using the specified scale factors.

Specified by:

scale in class ImageProcessor

See Also:

ImageProcessor.setInterpolate(boolean)

crop

public ImageProcessor crop()

Description copied from class: ImageProcessor

Creates a new processor containing an image that corresponds to the current ROI.

Specified by:

crop in class ImageProcessor

duplicate

public ImageProcessor duplicate()

Returns a duplicate of this image.

Specified by:

duplicate in class ImageProcessor

getInterpolatedRGBPixel

public int getInterpolatedRGBPixel(double x,
                                   double y)

Uses bilinear interpolation to find the pixel value at real coordinates (x,y).

resize

public ImageProcessor resize(int dstWidth,
                             int dstHeight)

Creates a new ColorProcessor containing a scaled copy of this image or selection.

Specified by:

resize in class ImageProcessor

See Also:

ImageProcessor.setInterpolate(boolean)

makeThumbnail

public ImageProcessor makeThumbnail(int width2,
                                    int height2,
                                    double smoothFactor)

Uses averaging to creates a new ColorProcessor containing a scaled copy of this image or selection. The amount of smoothing is determined by 'smoothFactor', which must be greater than zero and less than or equal 1.0

rotate

public void rotate(double angle)

Rotates the image or ROI 'angle' degrees clockwise.

Specified by:

rotate in class ImageProcessor

See Also:

ImageProcessor.setInterpolationMethod(int)

flipVertical

public void flipVertical()

Description copied from class: ImageProcessor

Flips the image or ROI vertically.

Specified by:

flipVertical in class ImageProcessor

convolve3x3

public void convolve3x3(int[] kernel)

3x3 convolution contributed by Glynne Casteel.

Specified by:

convolve3x3 in class ImageProcessor

filter

public void filter(int type)

3x3 unweighted smoothing.

Specified by:

filter in class ImageProcessor

getHistogram

public int[] getHistogram()

Description copied from class: ImageProcessor

Returns the histogram of the image or ROI. Returns a luminosity histogram for RGB images and null for float images.

Specified by:

getHistogram in class ImageProcessor

getHistogram

public int[] getHistogram(ImageProcessor mask)

convolve

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

Performs a convolution operation using the specified kernel.

Specified by:

convolve in class ImageProcessor

setWeightingFactors

public static void setWeightingFactors(double rFactor,
                                       double gFactor,
                                       double bFactor)

Sets the weighting factors used by getPixelValue(), getHistogram() and convertToByte() to do color conversions. The default values are 1/3, 1/3 and 1/3. Check "Weighted RGB Conversions" in Edit/Options/Conversions to use 0.299, 0.587 and 0.114.

getWeightingFactors

public static double[] getWeightingFactors()

Returns the three weighting factors used by getPixelValue(), getHistogram() and convertToByte() to do color conversions.

isInvertedLut

public boolean isInvertedLut()

Always returns false since RGB images do not use LUTs.

Overrides:

isInvertedLut in class ImageProcessor

getBestIndex

public int getBestIndex(java.awt.Color c)

Always returns 0 since RGB images do not use LUTs.

Overrides:

getBestIndex in class ImageProcessor

invertLut

public void invertLut()

Does nothing since RGB images do not use LUTs.

Overrides:

invertLut in class ImageProcessor

updateComposite

public void updateComposite(int[] rgbPixels,
                            int channel)

Description copied from class: ImageProcessor

CompositeImage calls this method to generate an updated color image.

Overrides:

updateComposite in class ImageProcessor

threshold

public void threshold(int level)

Not implemented.

Specified by:

threshold in class ImageProcessor

getNChannels

public int getNChannels()

Returns the number of color channels of the image, i.e., 3.

Overrides:

getNChannels in class ImageProcessor

Returns:

1 for grayscale images, 3 for RGB images

toFloat

public FloatProcessor toFloat(int channelNumber,
                              FloatProcessor fp)

Returns a FloatProcessor with one color channel of the image. The roi and mask are also set for the FloatProcessor.

Specified by:

toFloat in class ImageProcessor

Parameters:

channelNumber - Determines the color channel, 0=red, 1=green, 2=blue

fp - Here a FloatProcessor can be supplied, or null. The FloatProcessor is overwritten by this method (re-using its pixels array improves performance).

Returns:

A FloatProcessor with the converted image data of the color channel selected

setPixels

public void setPixels(int channelNumber,
                      FloatProcessor fp)

Sets the pixels of one color channel from a FloatProcessor.

Specified by:

setPixels in class ImageProcessor

Parameters:

channelNumber - Determines the color channel, 0=red, 1=green, 2=blue

fp - The FloatProcessor where the image data are read from.