ij.process.ColorProcessor

All Implemented Interfaces:: Cloneable

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 (1996).

Field Summary

Fields
Modifier and Type	Field	Description
`protected int[]`	`pixels`
`static int`	`RGB_DILATE`
`static int`	`RGB_ERODE`
`static int`	`RGB_FIND_EDGES`
`static int`	`RGB_MAX`
`static int`	`RGB_MEDIAN`
`static int`	`RGB_MIN`
`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, fillValueSet, FIND_EDGES, fmGraphics, 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, rnd, roiHeight, roiWidth, roiX, roiY, sampleModel, seed, snapshotHeight, snapshotWidth, source, width, xMax, xMin, yMax, yMin

Constructor Summary

Constructors
Constructor	Description
`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.
`ColorProcessor(Image img)`	Creates a ColorProcessor from an AWT Image or BufferedImage.

Method Summary

Modifier and Type	Method	Description
`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.
`boolean`	`caSnapshot()`	Used by the ContrastAdjuster
`void`	`caSnapshot(boolean set)`	Used by the ContrastAdjuster
`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.
`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()`	Returns 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)`	A 3x3 filter operation, where the argument (ImageProcessor.BLUR_MORE, FIND_EDGES, MEDIAN_FILTER, MIN or MAX) determines the filter type.
`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(Color c)`	Always returns 0 since RGB images do not use LUTs.
`int`	`getBitDepth()`	Returns the bit depth, 8, 16, 24 (RGB) or 32.
`FloatProcessor`	`getBrightness()`	Returns brightness as a FloatProcessor.
`byte[]`	`getChannel(int channel)`	Returns the specified plane (1=red, 2=green, 3=blue, 4=alpha) as a byte array.
`ByteProcessor`	`getChannel(int channel, ByteProcessor bp)`	Returns the specified plane (1=red, 2=green, 3=blue, 4=alpha) as a ByteProcessor.
`Color`	`getColor(int x, int y)`
`float`	`getf(int index)`
`float`	`getf(int x, int y)`	Returns the value of the pixel at (x,y) as a float.
`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).
`Object`	`getPixels()`	Returns a reference to the int array containing this image's pixel data.
`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.
`double[]`	`getRGBWeights()`	Returns the values set by setRGBWeights(), or null if setRGBWeights() has not been called.
`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`	`isGrayscale()`	Returns 'true' if this is a grayscale image.
`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 downsized copy of this image or selection.
`void`	`medianFilter()`	A 3x3 median filter.
`void`	`noise(double range)`	Adds pseudorandom, Gaussian ("normally") distributed values, with mean 0.0 and the specified standard deviation, to this 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`	`setChannel(int channel, ByteProcessor bp)`	Sets the pixels of one color channel from a ByteProcessor.
`void`	`setColor(int color)`	Sets the fill/draw color, where `color` is an RGB int.
`void`	`setColor(Color color)`	Sets the foreground color.
`void`	`setColorModel(ColorModel cm)`	Sets the color model.
`void`	`setf(int index, float value)`
`void`	`setf(int x, int y, float value)`	Sets the value of the pixel at (x,y) to '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(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`	`setRGBWeights(double[] weights)`	This is a thread-safe (non-static) version of setWeightingFactors().
`void`	`setRGBWeights(double rweight, double gweight, double bweight)`	This is a thread-safe (non-static) version of setWeightingFactors().
`void`	`setSnapshotPixels(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`	`swapPixelArrays()`	Swaps the pixel and snapshot (undo) arrays.
`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.
`boolean`	`weightedHistogram()`

Methods inherited from class ij.process.ImageProcessor

abs, add, add, and, applyMacro, bin, blurGaussian, clone, convertToByte, convertToByteProcessor, convertToByteProcessor, convertToColorProcessor, convertToFloat, convertToFloatProcessor, convertToRGB, convertToShort, convertToShortProcessor, convertToShortProcessor, createMask, cubic, draw, drawDot, drawDot2, drawLine, drawLine4, drawOval, drawOverlay, drawPolygon, drawRect, drawRoi, drawString, drawString, drawString, exp, fill, fillOutside, fillOval, fillPolygon, fillRect, fillValueSet, flipHorizontal, gamma, getAutoThreshold, getAutoThreshold, getBicubicInterpolatedPixel, getBufferedImage, getCalibrationTable, getColorModel, getColumn, getCurrentColorModel, getDefaultColorModel, getFloatArray, getFont, getFontMetrics, getHeight, getHistogram, getHistogramMax, getHistogramMin, getHistogramSize, getIndexSampleModel, getIntArray, getInterpolate, getInterpolatedValue, getInterpolationMethod, getInterpolationMethods, getLine, getLineWidth, getLut, getLutUpdateMode, getMask, getMaskArray, getMaxThreshold, getMinThreshold, getNeighborhood, getOverlay, getPixelCount, getProgressIncrement, getRoi, getRow, getRow, getSliceNumber, getStatistics, getStats, getStringBounds, getStringWidth, getThresholdColorModel, getValue, getWidth, hideProgress, insert, invert, isBinary, isColorLut, isDefaultLut, isKillable, isPseudoColorLut, isSigned16Bit, lineTo, ln, log, makeDefaultColorModel, maskSizeError, max, maxValue, min, minValue, moveTo, multiply, or, putColumn, putRow, putRow, resetBinaryThreshold, resetMinAndMax, resetRoi, resetThreshold, resize, resize, resizeLinearly, rotateLeft, rotateRight, scaleAndSetThreshold, set, setAntialiasedText, setAutoThreshold, setAutoThreshold, setAutoThreshold, setAutoThreshold, setAutoThreshold, setBinaryThreshold, setCalibrationTable, setClipRect, setColor, setFloatArray, setFont, setHistogramRange, setHistogramSize, setIntArray, setInterpolate, setInterpolationMethod, setJustification, setLineWidth, setLut, setLutAnimation, setMask, setOverColor, setOverlay, setProgressBar, setRandomSeed, setRoi, setRoi, setRoi, setRoi, setSliceNumber, setSnapshotCopyMode, setThreshold, setUnderColor, setUseBicubic, sharpen, showProgress, smooth, sqr, sqrt, subtract, toString, translate, translate, xor

Methods inherited from class java.lang.Object

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

Field Details
- 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
- RGB_MIN
  
  public static final int RGB_MIN
  
  See Also:
  
  Constant Field Values
- RGB_MAX
  
  public static final int RGB_MAX
  
  See Also:
  
  Constant Field Values
Constructor Details
- ColorProcessor
  
  public ColorProcessor(Image img)
  
  Creates a ColorProcessor from an AWT Image or BufferedImage.
- 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 Details
- createImage
  
  public 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
- setColorModel
  
  public void setColorModel(ColorModel cm)
  
  Description copied from class: ImageProcessor
  
  Sets the color model. Must be an IndexColorModel (aka LUT) for all processors except the ColorProcessor.
  
  Overrides:
  
  setColorModel 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 Color getColor(int x, int y)
- setColor
  
  public void setColor(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
  
  See Also:
  
  IJ.setMinAndMax(ij.ImagePlus,double,double)
- 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
- caSnapshot
  
  public void caSnapshot(boolean set)
  
  Used by the ContrastAdjuster
- caSnapshot
  
  public boolean caSnapshot()
  
  Used by the ContrastAdjuster
- swapPixelArrays
  
  public void swapPixelArrays()
  
  Swaps the pixel and snapshot (undo) arrays.
  
  Specified by:
  
  swapPixelArrays in class ImageProcessor
- setSnapshotPixels
  
  public void setSnapshotPixels(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 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 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. Use getValue(x,y) to get calibrated values from 8-bit and 16-bit images, to get intensity values from RGB images and to get float values from 32-bit images.
  
  Specified by:
  
  getPixel in class ImageProcessor
  
  See Also:
  
  ImageProcessor.getValue(int, int)
- 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)
  
  Description copied from class: ImageProcessor
  
  Returns the value of the pixel at (x,y) as a float. Faster than getPixelValue() because no bounds checking is done.
  
  Specified by:
  
  getf in class ImageProcessor
- setf
  
  public final void setf(int x, int y, float value)
  
  Description copied from class: ImageProcessor
  
  Sets the value of the pixel at (x,y) to 'value'. Does no bounds checking or clamping, making it faster than putPixel(). Due to the lack of bounds checking, (x,y) coordinates outside the image may cause an exception. Due to the lack of clamping, values outside the 0-255 range (for byte) or 0-65535 range (for short) are not handled correctly.
  
  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 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(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.
- getChannel
  
  public byte[] getChannel(int channel)
  
  Returns the specified plane (1=red, 2=green, 3=blue, 4=alpha) as a byte array.
- getChannel
  
  public ByteProcessor getChannel(int channel, ByteProcessor bp)
  
  Returns the specified plane (1=red, 2=green, 3=blue, 4=alpha) as a ByteProcessor.
- setChannel
  
  public void setChannel(int channel, ByteProcessor bp)
  
  Sets the pixels of one color channel from a ByteProcessor.
  
  Parameters:
  
  channel - Determines the color channel, 1=red, 2=green, 3=blue, 4=alpha
  
  bp - The ByteProcessor where the image data are read from.
- 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 pseudorandom, Gaussian ("normally") distributed values, with mean 0.0 and the specified standard deviation, to this image or ROI.
  
  Specified by:
  
  noise in class ImageProcessor
- 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
  
  Returns 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 downsized copy of this image or selection.
- 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)
  
  A 3x3 filter operation, where the argument (ImageProcessor.BLUR_MORE, FIND_EDGES, MEDIAN_FILTER, MIN or MAX) determines the filter type.
  
  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.
  For 8-bit and 16-bit images, returns an array with one entry for each possible value that a pixel can have, from 0 to 255 (8-bit image) or 0-65535 (16-bit image). Thus, the array size is 256 or 65536, and the bin width in uncalibrated units is 1.
  For RGB images, the brightness is evaluated using the color weights (which would result in a float value) and rounded to an int. This gives 256 bins. FloatProcessor.getHistogram is not implemented (returns null).
  
  Specified by:
  
  getHistogram in class ImageProcessor
- getHistogram
  
  public int[] getHistogram(ImageProcessor mask)
- weightedHistogram
  
  public boolean weightedHistogram()
- 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.
  
  See Also:
  
  getWeightingFactors(), setRGBWeights(double, double, double)
- getWeightingFactors
  
  public static double[] getWeightingFactors()
  
  Returns the three weighting factors used by getPixelValue(), getHistogram() and convertToByte() to do color conversions.
  
  See Also:
  
  setWeightingFactors(double, double, double), getRGBWeights()
- setRGBWeights
  
  public void setRGBWeights(double rweight, double gweight, double bweight)
  
  This is a thread-safe (non-static) version of setWeightingFactors().
- setRGBWeights
  
  public void setRGBWeights(double[] weights)
  
  This is a thread-safe (non-static) version of setWeightingFactors().
- getRGBWeights
  
  public double[] getRGBWeights()
  
  Returns the values set by setRGBWeights(), or null if setRGBWeights() has not been called.
- isInvertedLut
  
  public boolean isInvertedLut()
  
  Always returns false since RGB images do not use LUTs.
  
  Overrides:
  
  isInvertedLut in class ImageProcessor
- isGrayscale
  
  public final boolean isGrayscale()
  
  Returns 'true' if this is a grayscale image.
  
  Overrides:
  
  isGrayscale in class ImageProcessor
- getBestIndex
  
  public int getBestIndex(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.
- getBitDepth
  
  public int getBitDepth()
  
  Description copied from class: ImageProcessor
  
  Returns the bit depth, 8, 16, 24 (RGB) or 32. RGB images actually use 32 bits per pixel.
  
  Overrides:
  
  getBitDepth in class ImageProcessor

Class ColorProcessor

Field Summary

Fields inherited from class ij.process.ImageProcessor

Constructor Summary

Method Summary

Methods inherited from class ij.process.ImageProcessor

Methods inherited from class java.lang.Object

Field Details

Constructor Details

Method Details