Package ij.process
Class ImageProcessor
java.lang.Object
ij.process.ImageProcessor
- All Implemented Interfaces:
Cloneable
- Direct Known Subclasses:
FloatProcessor
This abstract class is the superclass for classes that process
the four data types (byte, short, float and RGB) supported by ImageJ.
An ImageProcessor contains the pixel data of a 2D image and
some basic methods to manipulate it.
- See Also:
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Field Summary
FieldsModifier and TypeFieldDescriptionprotected boolean
protected ColorModel
static final int
Interpolation methodsstatic final int
Interpolation methodsstatic final int
Value of pixels included in masks.static final int
static final int
protected byte[]
protected byte[]
protected boolean
static final int
Center justify text.protected int
protected int
protected int
protected int
protected ColorModel
protected ColorModel
static final int
protected float[]
protected int
protected int
protected static IndexColorModel
protected Color
Updated by TAM (original change to 138k, updated June 19,2014)static final int
protected BufferedImage
protected Font
protected FontMetrics
protected byte[]
protected byte[]
protected int
protected double
protected double
protected int
protected BufferedImage
protected Image
protected boolean
protected int
protected boolean
protected boolean
static final int
Isodata thresholding methodstatic final int
Modified isodata method used in Image/Adjust/Threshold toolprotected int
static final int
Left justify text.protected int
protected boolean
protected int
static final int
protected double
static final int
static final int
protected boolean
protected double
static final int
Interpolation methodsprotected boolean
static final int
static final double
Value returned by getMinThreshold() when thresholding is not enabled.static final int
Interpolation methodsstatic final int
protected WritableRaster
static final int
static final int
Right justify text.protected byte[]
protected byte[]
protected int
protected int
protected int
protected int
protected SampleModel
protected int
protected int
protected MemoryImageSource
protected int
protected int
protected int
protected int
protected int
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
abs()
If this is a 32-bit or signed 16-bit image, performs an absolute value transform, otherwise does nothing.void
add
(double value) Adds 'value' to each pixel in the image or ROI.void
add
(int value) Adds 'value' to each pixel in the image or ROI.boolean
Adds the color to the end of the color model if not already there.boolean
Adds the color to the color model at the specified index.void
addPlotString
(String str, double x, double y, double angle) void
and
(int value) Binary AND of each pixel in the image or ROI with 'value'.void
applyMacro
(String macro) Uses the Process/Math/Macro command to apply macro code to this image.abstract void
applyTable
(int[] lut) Transforms the image or ROI using a lookup table.void
Converts the image to binary using an automatically determined threshold.bin
(int shrinkFactor) Returns a copy of this image that has been reduced in size using binning.void
blurGaussian
(double sigma) Blurs the image by convolving with a Gaussian function.void
clone()
Returns a shallow copy of this ImageProcessor, where this image and the copy share pixel data.convertToByte
(boolean doScaling) Returns an 8-bit version of this image as a ByteProcessor.ij.process.ByteProcessor
Returns an 8-bit version of this image as a ByteProcessor.ij.process.ByteProcessor
convertToByteProcessor
(boolean scale) Returns an 8-bit version of this image as a ByteProcessor.ij.process.ColorProcessor
Returns an RGB version of this image as a ColorProcessor.Returns a 32-bit float version of this image as a FloatProcessor.Returns a 32-bit float version of this image as a FloatProcessor.Returns an RGB version of this image as a ColorProcessor.convertToShort
(boolean doScaling) Returns a 16-bit version of this image as a ShortProcessor.ij.process.ShortProcessor
Returns a 16-bit version of this image as a ShortProcessor.ij.process.ShortProcessor
convertToShortProcessor
(boolean scale) Returns a 16-bit version of this image as a ShortProcessor.abstract void
convolve
(float[] kernel, int kernelWidth, int kernelHeight) Performs a convolution operation using the specified kernel.abstract void
convolve3x3
(int[] kernel) Convolves the image or ROI with the specified 3x3 integer convolution kernel.abstract 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.abstract Image
Returns a copy of this image is the form of an AWT Image.abstract ImageProcessor
createProcessor
(int width, int height) Returns a new, blank processor with the specified width and height.abstract ImageProcessor
crop()
Creates a new processor containing an image that corresponds to the current ROI.static final double
cubic
(double x) abstract void
dilate()
Dilates the image or ROI using a 3x3 minimum filter.void
draw
(ij.gui.Roi roi) Draws the specified ROI on this image using the line width and color defined by ip.setLineWidth() and ip.setColor().void
drawDot
(int xcenter, int ycenter) Draws a dot using the current line width and fill/draw value.void
drawDot2
(int x, int y) Deprecated.void
drawLine
(int x1, int y1, int x2, int y2) Draws a line from (x1,y1) to (x2,y2).void
drawOval
(int x, int y, int width, int height) Draws an elliptical shape.void
drawOverlay
(ij.gui.Overlay overlay) Draws the specified Overlay on this image.abstract void
drawPixel
(int x, int y) Sets the pixel at (x,y) to the current fill/draw value.void
Draws a polygon.void
drawRect
(int x, int y, int width, int height) Draws a rectangle.void
drawRoi
(ij.gui.Roi roi) Draws the specified ROI on this image using the stroke width, stroke color and fill color defined by roi.setStrokeWidth, roi.setStrokeColor() and roi.setFillColor().void
drawString
(String s) Draws a string at the current location using the current fill/draw value.void
drawString
(String s, int x, int y) Draws a string at the specified location using the current fill/draw value.void
drawString
(String s, int x, int y, Color background) Draws a string at the specified location with a filled background.abstract ImageProcessor
Returns a duplicate of this image.abstract void
erode()
Erodes the image or ROI using a 3x3 maximum filter.void
exp()
Performs a exponential transform on the image or ROI.void
fill()
Fills the image or ROI bounding rectangle with the current fill/draw value.void
fill
(ij.gui.Roi roi) Fills the ROI with the current fill/draw value.abstract void
fill
(ImageProcessor mask) Fills pixels that are within the ROI bounding rectangle and part of the mask (i.e.void
fillOutside
(ij.gui.Roi roi) Fills outside an Roi.void
fillOval
(int x, int y, int width, int height) Fills an elliptical shape.void
Fills a polygon.abstract void
filter
(int type) A 3x3 filter operation, where the argument (BLUR_MORE, FIND_EDGES, MEDIAN_FILTER, MIN or MAX) determines the filter type.void
Finds edges in the image or ROI using a Sobel operator.void
Flips the image or ROI horizontally.abstract void
Flips the image or ROI vertically.void
gamma
(double value) Performs gamma correction of the image or ROI.abstract int
get
(int index) abstract int
get
(int x, int y) This is a faster version of getPixel() that does not do bounds checking.int
Returns a pixel value (threshold) that can be used to divide the image into objects and background.int
getAutoThreshold
(int[] histogram) This is a version of getAutoThreshold() that uses a histogram passed as an argument.abstract double
Returns the background fill value.int
Returns the LUT index that's the best match for this color.double
getBicubicInterpolatedPixel
(double x0, double y0, ImageProcessor ip2) This method is from Chapter 16 of "Digital Image Processing: An Algorithmic Introduction Using Java" by Burger and Burge (http://www.imagingbook.com/).int
Returns the bit depth, 8, 16, 24 (RGB) or 32.Returns this image as a BufferedImage.float[]
Returns the calibration table or null.Returns this processor's color model.void
getColumn
(int x, int y, int[] data, int length) Returns the pixel values down the column starting at (x,y).Returns the current color model, which may have been modified by setMinAndMax() or setThreshold().Returns the default grayscale IndexColorModel.abstract float
getf
(int index) abstract float
getf
(int x, int y) Returns the value of the pixel at (x,y) as a float.float[][]
Returns a copy of the pixel data as a 2D float array with dimensions [x=0..width-1][y=0..height-1].getFont()
Returns the current font.Returns the current FontMetrics.int
Returns the height of this image in pixels.abstract int[]
Returns the histogram of the image or ROI.double
Returns the maximum histogram value used for histograms of float images.double
Returns the minimum histogram value used for histograms of float images.int
Returns the number of float image histogram bins.protected SampleModel
int[][]
Returns a copy of the pixel data as a 2D int array with dimensions [x=0..width-1][y=0..height-1].boolean
Returns the value of the interpolate field.abstract double
getInterpolatedPixel
(double x, double y) Uses the current interpolation method (bilinear or bicubic) to find the pixel value at real coordinates (x,y).final double
getInterpolatedValue
(double x, double y) Uses bilinear interpolation to find the pixel value at real coordinates (x,y).int
Returns the current interpolation method (NONE, BILINEAR or BICUBIC).static String[]
double[]
getLine
(double x1, double y1, double x2, double y2) Returns an array containing the pixel values along the line starting at (x1,y1) and ending at (x2,y2).int
Returns the current line width.ij.process.LUT
getLut()
int
Returns the LUT update mode, which can be RED_LUT, BLACK_AND_WHITE_LUT, OVER_UNDER_LUT or NO_LUT_UPDATE.getMask()
For images with irregular ROIs, returns a mask, otherwise, returns null.byte[]
Returns a reference to the mask pixel array, or null if there is no mask.abstract double
getMax()
Returns the largest displayed pixel value.double
Returns the upper threshold level.abstract double
getMin()
Returns the smallest displayed pixel value.double
Returns the lower threshold level.int
Returns the number of color channels in the image.void
getNeighborhood
(int x, int y, double[][] arr) Experimentalij.gui.Overlay
abstract 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 samples for the pixel at (x,y) in an int array.int
abstract int
getPixelInterpolated
(double x, double y) Uses the current interpolation method to find the pixel value at real coordinates (x,y).abstract Object
Returns a reference to this image's pixel array.abstract Object
Returns a copy of the pixel data.abstract float
getPixelValue
(int x, int y) Returns the value of the pixel at (x,y).getRoi()
Returns a Rectangle that represents the current region of interest.float[]
getRow
(int x, int y, float[] data, int length) Returns the pixel values along the horizontal line starting at (x,y).void
getRow
(int x, int y, int[] data, int length) Returns the pixel values along the horizontal line starting at (x,y).int
abstract Object
Returns a reference to the snapshot (undo) buffer, or null.ij.process.ImageStatistics
int
Returns the width in pixels of the specified string.int
getWidth()
Returns the width of this image in pixels.protected void
Deprecated.void
insert
(ImageProcessor ip, int xloc, int yloc) Inserts the image contained in 'ip' at (xloc, yloc).void
invert()
Inverts the image or ROI.void
Inverts the values in this image's LUT (indexed color model).boolean
isBinary()
Returns 'true' if this is a binary image (8-bit-image with only 0 and 255).boolean
Returns true if this image uses a color LUT.boolean
Returns true if the image is using the default grayscale LUT.boolean
Returns 'true' if this is an image with a grayscale LUT or an RGB image with identical red, green and blue channels.boolean
Returns true if this image uses an inverting LUT that displays zero as white and 255 as black.boolean
Deprecated.boolean
Returns true if this image uses a pseudocolor or grayscale LUT, in other words, is this an image that can be filtered.void
lineTo
(int x2, int y2) Draws a line from the current drawing location to (x2,y2).void
ln()
Does a natural logarithmic (base e) transform of the image or ROI.void
log()
Does a natural logarithmic (base e) transform of the image or ROI.protected void
protected String
maskSizeError
(ImageProcessor mask) void
max
(double value) Pixels greater than 'value' are set to 'value'.double
maxValue()
Returns the maximum possible pixel value.abstract void
A 3x3 median filter.void
min
(double value) Pixels less than 'value' are set to 'value'.double
minValue()
Returns the minimum possible pixel value.void
moveTo
(int x, int y) Sets the current drawing location.void
multiply
(double value) Multiplies each pixel in the image or ROI by 'value'.abstract void
noise
(double standardDeviation) Adds pseudorandom, Gaussian ("normally") distributed values, with mean 0.0 and the specified standard deviation, to this image or ROI.void
or
(int value) Binary OR of each pixel in the image or ROI with 'value'.void
void
putColumn
(int x, int y, int[] data, int length) Inserts the pixels contained in 'data' into a column starting at (x,y).abstract 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 an int array of samples.abstract void
putPixelValue
(int x, int y, double value) Stores the specified value at (x,y).void
putRow
(int x, int y, float[] data, int length) Inserts the pixels contained in 'data' into a horizontal line starting at (x,y).void
putRow
(int x, int y, int[] data, int length) Inserts the pixels contained in 'data' into a horizontal line starting at (x,y).abstract void
reset()
Restores the pixel data from the snapshot (undo) buffer.abstract void
reset
(ImageProcessor mask) Restores pixels from the snapshot buffer that are within the rectangular roi but not part of the mask.void
Resets the threshold if minThreshold=maxThreshold and lutUpdateMode=NO_LUT_UPDATE.void
For short and float images, recalculates the min and max image values needed to correctly display the image.void
resetRoi()
Sets the ROI (Region of Interest) and clipping rectangle to the entire image.void
Disables thresholding.resize
(int dstWidth) Creates a new ImageProcessor containing a scaled copy of this image or ROI, with the aspect ratio maintained.abstract ImageProcessor
resize
(int dstWidth, int dstHeight) Creates a new ImageProcessor containing a scaled copy of this image or ROI.resize
(int dstWidth, int dstHeight, boolean useAverging) Creates a new ImageProcessor containing a scaled copy of this image or ROI.protected ImageProcessor
resizeLinearly
(int width2, int height2) Use linear interpolation to resize images that have a width or height of one.abstract void
rotate
(double angle) Rotates the image or selection 'angle' degrees clockwise.Rotates the entire image 90 degrees counter-clockwise.Rotates the entire image 90 degrees clockwise.abstract void
scale
(double xScale, double yScale) Scales the image by the specified factors.void
set
(double value) Assigns 'value' to each pixel in the image or ROI.abstract void
set
(int index, int value) abstract 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
setAntialiasedText
(boolean antialiasedText) Specifies whether or not text is drawn using antialiasing.void
setAutoThreshold
(int method, int lutUpdate) Automatically sets the lower and upper threshold levels, where 'method' must be ISODATA or ISODATA2 and 'lutUpdate' must be RED_LUT, BLACK_AND_WHITE_LUT, OVER_UNDER_LUT or NO_LUT_UPDATE.void
setAutoThreshold
(ij.process.AutoThresholder.Method method, boolean darkBackground) void
setAutoThreshold
(ij.process.AutoThresholder.Method method, boolean darkBackground, int lutUpdate) void
setAutoThreshold
(String mString) void
setAutoThreshold
(String mString, boolean darkBackground, int lutUpdate) abstract void
setBackgroundValue
(double value) Sets the background fill value used by the rotate() and scale() methods.void
void
setCalibrationTable
(float[] cTable) Set a lookup table used by getPixelValue(), getLine() and convertToFloat() to calibrate pixel values.void
setClipRect
(Rectangle clipRect) Updates the clipping rectangle used by lineTo(), drawLine(), drawDot() and drawPixel().void
setColor
(double value) Sets the default fill/draw value.void
setColor
(int value) Sets the default fill/draw value.abstract void
Sets the default fill/draw value to the pixel value closest to the specified color.void
Sets the color model.abstract void
setf
(int index, float value) abstract void
setf
(int x, int y, float value) Sets the value of the pixel at (x,y) to 'value'.void
setFloatArray
(float[][] a) Replaces the pixel data with contents of the specified 2D float array.void
Sets the font used by drawString().void
setHistogramRange
(double histMin, double histMax) Set the range used for histograms of float images.void
setHistogramSize
(int size) Set the number of bins to be used for histograms of float images.void
setIntArray
(int[][] a) Replaces the pixel data with contents of the specified 2D int array.void
setInterpolate
(boolean interpolate) This method has been replaced by setInterpolationMethod().void
setInterpolationMethod
(int method) Use this method to set the interpolation method (NONE, BILINEAR or BICUBIC) used by scale(), resize() and rotate().void
setJustification
(int justification) Sets the justification used by drawString(), wherejustification
is CENTER_JUSTIFY, RIGHT_JUSTIFY or LEFT_JUSTIFY.void
setLineWidth
(int width) Sets the line width used by lineTo() and drawDot().void
setLut
(ij.process.LUT lut) void
setLutAnimation
(boolean lutAnimation) For 16 and 32 bit processors, set 'lutAnimation' true to have createImage() use the cached 8-bit version of the image.void
setMask
(ImageProcessor mask) Defines a byte mask that limits processing to an irregular ROI.abstract void
setMinAndMax
(double min, double max) This image will be displayed by mapping pixel values in the range min-max to screen values in the range 0-255.static void
setOverColor
(int red, int green, int blue) Sets the upper Over/Under threshold color.void
setOverlay
(ij.gui.Overlay overlay) This method is used to display virtual stack overlays.abstract void
setPixels
(int channelNumber, FloatProcessor fp) Sets the pixels (of one color channel for RGB images) from a FloatProcessor.abstract void
Sets a new pixel array for the image.void
setProgressBar
(ij.gui.ProgressBar pb) Assigns a progress bar to this processor.void
setRoi
(int x, int y, int rwidth, int rheight) Defines a rectangular region of interest and sets the mask to null if this ROI is not the same size as the previous one.void
setRoi
(ij.gui.Roi roi) Defines a non-rectangular region of interest that will consist of a rectangular ROI and a mask.void
Defines a polygonal region of interest that will consist of a rectangular ROI and a mask.void
Defines a rectangular region of interest and sets the mask to null if this ROI is not the same size as the previous one.void
setSliceNumber
(int slice) PlugInFilterRunner uses this method to set the slice number.void
setSnapshotCopyMode
(boolean b) The getPixelsCopy() method returns a reference to the snapshot buffer if it is not null and 'snapshotCopyMode' is true.abstract void
setSnapshotPixels
(Object pixels) Sets a new pixel array for the snapshot (undo) buffer.void
setThreshold
(double minThreshold, double maxThreshold, int lutUpdate) Sets the lower and upper threshold levels.static void
setUnderColor
(int red, int green, int blue) Set the lower Over/Under thresholding color.static void
setUseBicubic
(boolean b) abstract void
setValue
(double value) Sets the default fill/draw value.void
sharpen()
Sharpens the image or ROI using a 3x3 convolution kernel.protected void
showProgress
(double percentDone) void
smooth()
Replaces each pixel with the 3x3 neighborhood mean.abstract void
snapshot()
Makes a copy of this image's pixel data that can be later restored using reset() or reset(mask).void
sqr()
Performs a square transform on the image or ROI.void
sqrt()
Performs a square root transform on the image or ROI.void
subtract
(double value) Subtracts 'value' from each pixel in the image or ROI.abstract void
Swaps the pixel and snapshot (undo) buffers.abstract void
threshold
(int level) Sets pixels less than or equal to level to 0 and all other pixels to 255.abstract FloatProcessor
toFloat
(int channelNumber, FloatProcessor fp) Returns a FloatProcessor with the image or one color channel thereof.toString()
Returns a string containing information about this ImageProcessor.void
translate
(double xOffset, double yOffset) Moves the image or selection vertically or horizontally by a specified number of pixels.void
translate
(int xOffset, int yOffset, boolean eraseBackground) Deprecated.replaced by translate(x,y)void
updateComposite
(int[] rgbPixels, int channel) CompositeImage calls this method to generate an updated color image.void
xor
(int value) Binary exclusive OR of each pixel in the image or ROI with 'value'.
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Field Details
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BLACK
public static final int BLACKValue of pixels included in masks.- See Also:
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NO_THRESHOLD
public static final double NO_THRESHOLDValue returned by getMinThreshold() when thresholding is not enabled.- See Also:
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LEFT_JUSTIFY
public static final int LEFT_JUSTIFYLeft justify text.- See Also:
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CENTER_JUSTIFY
public static final int CENTER_JUSTIFYCenter justify text.- See Also:
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RIGHT_JUSTIFY
public static final int RIGHT_JUSTIFYRight justify text.- See Also:
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ISODATA
public static final int ISODATAIsodata thresholding method- See Also:
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ISODATA2
public static final int ISODATA2Modified isodata method used in Image/Adjust/Threshold tool- See Also:
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NEAREST_NEIGHBOR
public static final int NEAREST_NEIGHBORInterpolation methods- See Also:
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NONE
public static final int NONEInterpolation methods- See Also:
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BILINEAR
public static final int BILINEARInterpolation methods- See Also:
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BICUBIC
public static final int BICUBICInterpolation methods- See Also:
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BLUR_MORE
public static final int BLUR_MORE- See Also:
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FIND_EDGES
public static final int FIND_EDGES- See Also:
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MEDIAN_FILTER
public static final int MEDIAN_FILTER- See Also:
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MIN
public static final int MIN- See Also:
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MAX
public static final int MAX- See Also:
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CONVOLVE
public static final int CONVOLVE- See Also:
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RED_LUT
public static final int RED_LUT- See Also:
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BLACK_AND_WHITE_LUT
public static final int BLACK_AND_WHITE_LUT- See Also:
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NO_LUT_UPDATE
public static final int NO_LUT_UPDATE- See Also:
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OVER_UNDER_LUT
public static final int OVER_UNDER_LUT- See Also:
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lineWidth
protected int lineWidth -
cx
protected int cx -
cy
protected int cy -
font
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fontMetrics
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antialiasedText
protected boolean antialiasedText -
boldFont
protected boolean boldFont -
width
protected int width -
snapshotWidth
protected int snapshotWidth -
height
protected int height -
snapshotHeight
protected int snapshotHeight -
roiX
protected int roiX -
roiY
protected int roiY -
roiWidth
protected int roiWidth -
roiHeight
protected int roiHeight -
xMin
protected int xMin -
xMax
protected int xMax -
yMin
protected int yMin -
yMax
protected int yMax -
baseCM
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cm
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rLUT1
protected byte[] rLUT1 -
gLUT1
protected byte[] gLUT1 -
bLUT1
protected byte[] bLUT1 -
rLUT2
protected byte[] rLUT2 -
gLUT2
protected byte[] gLUT2 -
bLUT2
protected byte[] bLUT2 -
interpolate
protected boolean interpolate -
interpolationMethod
protected int interpolationMethod -
minThreshold
protected double minThreshold -
maxThreshold
protected double maxThreshold -
histogramSize
protected int histogramSize -
histogramMin
protected double histogramMin -
histogramMax
protected double histogramMax -
cTable
protected float[] cTable -
lutAnimation
protected boolean lutAnimation -
source
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img
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newPixels
protected boolean newPixels -
drawingColor
Updated by TAM (original change to 138k, updated June 19,2014) -
clipXMin
protected int clipXMin -
clipXMax
protected int clipXMax -
clipYMin
protected int clipYMin -
clipYMax
protected int clipYMax -
justification
protected int justification -
lutUpdateMode
protected int lutUpdateMode -
raster
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image
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fmImage
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cm2
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sampleModel
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defaultColorModel
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minMaxSet
protected boolean minMaxSet -
inversionTested
protected boolean inversionTested -
invertedLut
protected boolean invertedLut
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Constructor Details
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ImageProcessor
public ImageProcessor()
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Method Details
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addPlotString
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clearPlotStrings
public void clearPlotStrings() -
plotStrings
public void plotStrings() -
addColor
Adds the color to the end of the color model if not already there. -
addColor
Adds the color to the color model at the specified index. -
showProgress
protected void showProgress(double percentDone) -
hideProgress
protected void hideProgress()Deprecated. -
getWidth
public int getWidth()Returns the width of this image in pixels. -
getHeight
public int getHeight()Returns the height of this image in pixels. -
getBitDepth
public int getBitDepth()Returns the bit depth, 8, 16, 24 (RGB) or 32. RGB images actually use 32 bits per pixel. -
getColorModel
Returns this processor's color model. For non-RGB processors, this is the base lookup table (LUT), not the one that may have been modified by setMinAndMax() or setThreshold(). -
getCurrentColorModel
Returns the current color model, which may have been modified by setMinAndMax() or setThreshold(). -
setColorModel
Sets the color model. Must be an IndexColorModel (aka LUT) for all processors except the ColorProcessor. -
getLut
public ij.process.LUT getLut() -
setLut
public void setLut(ij.process.LUT lut) -
makeDefaultColorModel
protected void makeDefaultColorModel() -
invertLut
public void invertLut()Inverts the values in this image's LUT (indexed color model). Does nothing if this is a ColorProcessor. -
getBestIndex
Returns the LUT index that's the best match for this color. -
isInvertedLut
public boolean isInvertedLut()Returns true if this image uses an inverting LUT that displays zero as white and 255 as black. -
isGrayscale
public boolean isGrayscale()Returns 'true' if this is an image with a grayscale LUT or an RGB image with identical red, green and blue channels. -
isColorLut
public boolean isColorLut()Returns true if this image uses a color LUT. -
isPseudoColorLut
public boolean isPseudoColorLut()Returns true if this image uses a pseudocolor or grayscale LUT, in other words, is this an image that can be filtered. -
isDefaultLut
public boolean isDefaultLut()Returns true if the image is using the default grayscale LUT. -
setColor
Sets the default fill/draw value to the pixel value closest to the specified color. -
setColor
public void setColor(int value) Sets the default fill/draw value. -
setColor
public void setColor(double value) Sets the default fill/draw value. -
setValue
public abstract void setValue(double value) Sets the default fill/draw value. -
setBackgroundValue
public abstract void setBackgroundValue(double value) Sets the background fill value used by the rotate() and scale() methods. -
getBackgroundValue
public abstract double getBackgroundValue()Returns the background fill value. -
getMin
public abstract double getMin()Returns the smallest displayed pixel value. -
getMax
public abstract double getMax()Returns the largest displayed pixel value. -
setMinAndMax
public abstract void setMinAndMax(double min, double max) This image will be displayed by mapping pixel values in the range min-max to screen values in the range 0-255. For byte images, this mapping is done by updating the LUT. For short and float images, it's done by generating 8-bit AWT images. For RGB images, it's done by changing the pixel values. -
resetMinAndMax
public void resetMinAndMax()For short and float images, recalculates the min and max image values needed to correctly display the image. For ByteProcessors, resets the LUT. -
setThreshold
public void setThreshold(double minThreshold, double maxThreshold, int lutUpdate) Sets the lower and upper threshold levels. The 'lutUpdate' argument can be RED_LUT, BLACK_AND_WHITE_LUT, OVER_UNDER_LUT or NO_LUT_UPDATE. Thresholding of RGB images is not supported. -
setAutoThreshold
-
setAutoThreshold
-
setAutoThreshold
public void setAutoThreshold(ij.process.AutoThresholder.Method method, boolean darkBackground) -
setAutoThreshold
public void setAutoThreshold(ij.process.AutoThresholder.Method method, boolean darkBackground, int lutUpdate) -
setAutoThreshold
public void setAutoThreshold(int method, int lutUpdate) Automatically sets the lower and upper threshold levels, where 'method' must be ISODATA or ISODATA2 and 'lutUpdate' must be RED_LUT, BLACK_AND_WHITE_LUT, OVER_UNDER_LUT or NO_LUT_UPDATE. -
resetThreshold
public void resetThreshold()Disables thresholding. -
getMinThreshold
public double getMinThreshold()Returns the lower threshold level. Returns NO_THRESHOLD if thresholding is not enabled. -
getMaxThreshold
public double getMaxThreshold()Returns the upper threshold level. -
getLutUpdateMode
public int getLutUpdateMode()Returns the LUT update mode, which can be RED_LUT, BLACK_AND_WHITE_LUT, OVER_UNDER_LUT or NO_LUT_UPDATE. -
setBinaryThreshold
public void setBinaryThreshold() -
resetBinaryThreshold
public void resetBinaryThreshold()Resets the threshold if minThreshold=maxThreshold and lutUpdateMode=NO_LUT_UPDATE. This removes the invisible threshold set by the MakeBinary and Convert to Mask commands.- See Also:
-
setRoi
Defines a rectangular region of interest and sets the mask to null if this ROI is not the same size as the previous one.- See Also:
-
setRoi
public void setRoi(int x, int y, int rwidth, int rheight) Defines a rectangular region of interest and sets the mask to null if this ROI is not the same size as the previous one.- See Also:
-
setRoi
public void setRoi(ij.gui.Roi roi) Defines a non-rectangular region of interest that will consist of a rectangular ROI and a mask. After processing, callreset(mask)
to restore non-masked pixels. Here is an example:ip.setRoi(new OvalRoi(50, 50, 100, 50)); ip.fill(); ip.reset(ip.getMask());
The example assumessnapshot()
has been called, which is the case for code executed in therun()
method of plugins that implement thePlugInFilter
interface.- See Also:
-
setRoi
Defines a polygonal region of interest that will consist of a rectangular ROI and a mask. After processing, callreset(mask)
to restore non-masked pixels. Here is an example:Polygon p = new Polygon(); p.addPoint(50, 0); p.addPoint(100, 100); p.addPoint(0, 100); ip.setRoi(triangle); ip.invert(); ip.reset(ip.getMask());
The example assumessnapshot()
has been called, which is the case for code executed in therun()
method of plugins that implement thePlugInFilter
interface.- See Also:
-
resetRoi
public void resetRoi()Sets the ROI (Region of Interest) and clipping rectangle to the entire image. -
getRoi
Returns a Rectangle that represents the current region of interest. -
setMask
Defines a byte mask that limits processing to an irregular ROI. Background pixels in the mask have a value of zero. -
getMask
For images with irregular ROIs, returns a mask, otherwise, returns null. Pixels outside the mask have a value of zero. -
getMaskArray
public byte[] getMaskArray()Returns a reference to the mask pixel array, or null if there is no mask. -
setProgressBar
public void setProgressBar(ij.gui.ProgressBar pb) Assigns a progress bar to this processor. Set 'pb' to null to disable the progress bar. -
setInterpolate
public void setInterpolate(boolean interpolate) This method has been replaced by setInterpolationMethod(). -
setInterpolationMethod
public void setInterpolationMethod(int method) Use this method to set the interpolation method (NONE, BILINEAR or BICUBIC) used by scale(), resize() and rotate(). -
getInterpolationMethod
public int getInterpolationMethod()Returns the current interpolation method (NONE, BILINEAR or BICUBIC). -
getInterpolationMethods
-
getInterpolate
public boolean getInterpolate()Returns the value of the interpolate field. -
isKillable
public boolean isKillable()Deprecated. -
getLine
public double[] getLine(double x1, double y1, double x2, double y2) Returns an array containing the pixel values along the line starting at (x1,y1) and ending at (x2,y2). For byte and short images, returns calibrated values if a calibration table has been set using setCalibrationTable().- See Also:
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getRow
public void getRow(int x, int y, int[] data, int length) Returns the pixel values along the horizontal line starting at (x,y). -
getRow
public float[] getRow(int x, int y, float[] data, int length) Returns the pixel values along the horizontal line starting at (x,y). -
getColumn
public void getColumn(int x, int y, int[] data, int length) Returns the pixel values down the column starting at (x,y). -
putRow
public void putRow(int x, int y, int[] data, int length) Inserts the pixels contained in 'data' into a horizontal line starting at (x,y). -
putRow
public void putRow(int x, int y, float[] data, int length) Inserts the pixels contained in 'data' into a horizontal line starting at (x,y). -
putColumn
public void putColumn(int x, int y, int[] data, int length) Inserts the pixels contained in 'data' into a column starting at (x,y). -
moveTo
public void moveTo(int x, int y) Sets the current drawing location.- See Also:
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setLineWidth
public void setLineWidth(int width) Sets the line width used by lineTo() and drawDot(). -
getLineWidth
public int getLineWidth()Returns the current line width. -
lineTo
public void lineTo(int x2, int y2) Draws a line from the current drawing location to (x2,y2). -
drawLine
public void drawLine(int x1, int y1, int x2, int y2) Draws a line from (x1,y1) to (x2,y2). -
drawRect
public void drawRect(int x, int y, int width, int height) Draws a rectangle. -
drawOval
public void drawOval(int x, int y, int width, int height) Draws an elliptical shape. -
fillOval
public void fillOval(int x, int y, int width, int height) Fills an elliptical shape. -
drawPolygon
Draws a polygon. -
fillPolygon
Fills a polygon. -
drawDot2
public void drawDot2(int x, int y) Deprecated. -
drawDot
public void drawDot(int xcenter, int ycenter) Draws a dot using the current line width and fill/draw value. -
drawString
Draws a string at the current location using the current fill/draw value. Draws multiple lines if the string contains newline characters. -
drawString
Draws a string at the specified location using the current fill/draw value. -
drawString
Draws a string at the specified location with a filled background. A JavaScript example is available at http://imagej.nih.gov/ij/macros/js/DrawTextWithBackground.js -
setJustification
public void setJustification(int justification) Sets the justification used by drawString(), wherejustification
is CENTER_JUSTIFY, RIGHT_JUSTIFY or LEFT_JUSTIFY. The default is LEFT_JUSTIFY. -
setFont
Sets the font used by drawString(). -
setAntialiasedText
public void setAntialiasedText(boolean antialiasedText) Specifies whether or not text is drawn using antialiasing. Antialiased test requires an 8 bit or RGB image. Antialiasing does not work with 8-bit images that are not using 0-255 display range. -
getStringWidth
Returns the width in pixels of the specified string. -
getFont
Returns the current font. -
getFontMetrics
Returns the current FontMetrics. -
smooth
public void smooth()Replaces each pixel with the 3x3 neighborhood mean. -
sharpen
public void sharpen()Sharpens the image or ROI using a 3x3 convolution kernel. -
findEdges
public void findEdges()Finds edges in the image or ROI using a Sobel operator. -
flipVertical
public abstract void flipVertical()Flips the image or ROI vertically. -
flipHorizontal
public void flipHorizontal()Flips the image or ROI horizontally. -
rotateRight
Rotates the entire image 90 degrees clockwise. Returns a new ImageProcessor that represents the rotated image. -
rotateLeft
Rotates the entire image 90 degrees counter-clockwise. Returns a new ImageProcessor that represents the rotated image. -
insert
Inserts the image contained in 'ip' at (xloc, yloc). -
toString
Returns a string containing information about this ImageProcessor. -
fill
public void fill()Fills the image or ROI bounding rectangle with the current fill/draw value. Use fill(Roi) or fill(ip.getMask()) to fill non-rectangular selections.- See Also:
-
fill
Fills pixels that are within the ROI bounding rectangle and part of the mask (i.e. pixels that have a value=BLACK in the mask array). Use ip.getMask() to acquire the mask. Throws and IllegalArgumentException if the mask is null or the size of the mask is not the same as the size of the ROI.- See Also:
-
fill
public void fill(ij.gui.Roi roi) Fills the ROI with the current fill/draw value.- See Also:
-
fillOutside
public void fillOutside(ij.gui.Roi roi) Fills outside an Roi. -
draw
public void draw(ij.gui.Roi roi) Draws the specified ROI on this image using the line width and color defined by ip.setLineWidth() and ip.setColor().- See Also:
-
drawRoi
public void drawRoi(ij.gui.Roi roi) Draws the specified ROI on this image using the stroke width, stroke color and fill color defined by roi.setStrokeWidth, roi.setStrokeColor() and roi.setFillColor(). Works best with RGB images. Does not work with 16-bit and float images. Requires Java 1.6.- See Also:
-
drawOverlay
public void drawOverlay(ij.gui.Overlay overlay) Draws the specified Overlay on this image. Works best with RGB images. Does not work with 16-bit and float images. Requires Java 1.6.- See Also:
-
setCalibrationTable
public void setCalibrationTable(float[] cTable) Set a lookup table used by getPixelValue(), getLine() and convertToFloat() to calibrate pixel values. The length of the table must be 256 for byte images and 65536 for short images. RGB and float processors do not do calibration.- See Also:
-
getCalibrationTable
public float[] getCalibrationTable()Returns the calibration table or null. -
setHistogramSize
public void setHistogramSize(int size) Set the number of bins to be used for histograms of float images. -
getHistogramSize
public int getHistogramSize()Returns the number of float image histogram bins. The bin count is fixed at 256 for the other three data types. -
setHistogramRange
public void setHistogramRange(double histMin, double histMax) Set the range used for histograms of float images. The image range is used if bothhistMin
andhistMax
are zero. -
getHistogramMin
public double getHistogramMin()Returns the minimum histogram value used for histograms of float images. -
getHistogramMax
public double getHistogramMax()Returns the maximum histogram value used for histograms of float images. -
getPixels
Returns a reference to this image's pixel array. The array type (byte[], short[], float[] or int[]) varies depending on the image type. -
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.- See Also:
-
getPixel
public abstract int getPixel(int x, int y) 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. -
getPixelCount
public int getPixelCount() -
get
public abstract int get(int x, int y) This is a faster version of getPixel() that does not do bounds checking. -
get
public abstract int get(int index) -
set
public abstract 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. -
set
public abstract void set(int index, int value) -
getf
public abstract float getf(int x, int y) Returns the value of the pixel at (x,y) as a float. Faster than getPixel() because no bounds checking is done. -
getf
public abstract float getf(int index) -
setf
public abstract void setf(int x, int y, float value) 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. -
setf
public abstract void setf(int index, float value) -
getIntArray
public int[][] getIntArray()Returns a copy of the pixel data as a 2D int array with dimensions [x=0..width-1][y=0..height-1]. With RGB images, the returned values are in packed ARGB format. With float images, the returned values must be converted to float using Float.intBitsToFloat(). -
setIntArray
public void setIntArray(int[][] a) Replaces the pixel data with contents of the specified 2D int array. -
getFloatArray
public float[][] getFloatArray()Returns a copy of the pixel data as a 2D float array with dimensions [x=0..width-1][y=0..height-1]. -
setFloatArray
public void setFloatArray(float[][] a) Replaces the pixel data with contents of the specified 2D float array. -
getNeighborhood
public void getNeighborhood(int x, int y, double[][] arr) Experimental -
getPixel
public int[] getPixel(int x, int y, int[] iArray) Returns the samples for the pixel at (x,y) in an int array. RGB pixels have three samples, all others have one. Returns zeros if the the coordinates are not in bounds. iArray is an optional preallocated array. -
putPixel
public void putPixel(int x, int y, int[] iArray) Sets a pixel in the image using an int array of samples. RGB pixels have three samples, all others have one. -
getInterpolatedPixel
public abstract double getInterpolatedPixel(double x, double y) Uses the current interpolation method (bilinear or bicubic) to find the pixel value at real coordinates (x,y). -
getPixelInterpolated
public abstract int getPixelInterpolated(double x, double y) 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. -
getInterpolatedValue
public final double getInterpolatedValue(double x, double y) Uses bilinear interpolation to find the pixel value at real coordinates (x,y). Returns zero if the (x, y) is not inside the image. -
getBicubicInterpolatedPixel
This method is from Chapter 16 of "Digital Image Processing: An Algorithmic Introduction Using Java" by Burger and Burge (http://www.imagingbook.com/). -
cubic
public static final double cubic(double x) -
putPixel
public abstract void putPixel(int x, int y, int value) Stores the specified value at (x,y). Does nothing if (x,y) is outside the image boundary. For 8-bit and 16-bit images, out of range values are clamped. For RGB images, the argb values are packed in 'value'. For float images, 'value' is expected to be a float converted to an int using Float.floatToIntBits(). -
getPixelValue
public abstract float getPixelValue(int x, int y) Returns the value of the pixel at (x,y). For byte and short images, returns a calibrated value if a calibration table has been set using setCalibraionTable(). For RGB images, returns the luminance value. -
putPixelValue
public abstract void putPixelValue(int x, int y, double value) Stores the specified value at (x,y). -
drawPixel
public abstract void drawPixel(int x, int y) Sets the pixel at (x,y) to the current fill/draw value. -
setPixels
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. -
copyBits
Copies the image contained in 'ip' to (xloc, yloc) using one of the transfer modes defined in the Blitter interface. -
applyTable
public abstract void applyTable(int[] lut) 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. -
invert
public void invert()Inverts the image or ROI. -
add
public void add(int value) Adds 'value' to each pixel in the image or ROI. -
add
public void add(double value) Adds 'value' to each pixel in the image or ROI. -
subtract
public void subtract(double value) Subtracts 'value' from each pixel in the image or ROI. -
multiply
public void multiply(double value) Multiplies each pixel in the image or ROI by 'value'. -
set
public void set(double value) Assigns 'value' to each pixel in the image or ROI. -
and
public void and(int value) Binary AND of each pixel in the image or ROI with 'value'. -
or
public void or(int value) Binary OR of each pixel in the image or ROI with 'value'. -
xor
public void xor(int value) Binary exclusive OR of each pixel in the image or ROI with 'value'. -
gamma
public void gamma(double value) Performs gamma correction of the image or ROI. -
log
public void log()Does a natural logarithmic (base e) transform of the image or ROI. -
ln
public void ln()Does a natural logarithmic (base e) transform of the image or ROI. -
exp
public void exp()Performs a exponential transform on the image or ROI. -
sqr
public void sqr()Performs a square transform on the image or ROI. -
sqrt
public void sqrt()Performs a square root transform on the image or ROI. -
abs
public void abs()If this is a 32-bit or signed 16-bit image, performs an absolute value transform, otherwise does nothing. -
min
public void min(double value) Pixels less than 'value' are set to 'value'. -
max
public void max(double value) Pixels greater than 'value' are set to 'value'. -
createImage
Returns a copy of this image is the form of an AWT Image. -
getBufferedImage
Returns this image as a BufferedImage. -
createProcessor
Returns a new, blank processor with the specified width and height. -
snapshot
public abstract void snapshot()Makes a copy of this image's pixel data that can be later restored using reset() or reset(mask).- See Also:
-
reset
public abstract void reset()Restores the pixel data from the snapshot (undo) buffer. -
swapPixelArrays
public abstract void swapPixelArrays()Swaps the pixel and snapshot (undo) buffers. -
reset
Restores pixels from the snapshot buffer that are within the rectangular roi but not part of the mask. -
setSnapshotPixels
Sets a new pixel array for the snapshot (undo) buffer. -
getSnapshotPixels
Returns a reference to the snapshot (undo) buffer, or null. -
convolve3x3
public abstract void convolve3x3(int[] kernel) Convolves the image or ROI with the specified 3x3 integer convolution kernel. -
filter
public abstract void filter(int type) A 3x3 filter operation, where the argument (BLUR_MORE, FIND_EDGES, MEDIAN_FILTER, MIN or MAX) determines the filter type. -
medianFilter
public abstract void medianFilter()A 3x3 median filter. Requires 8-bit or RGB image. -
noise
public abstract void noise(double standardDeviation) Adds pseudorandom, Gaussian ("normally") distributed values, with mean 0.0 and the specified standard deviation, to this image or ROI. -
crop
Creates a new processor containing an image that corresponds to the current ROI. -
threshold
public abstract void threshold(int level) Sets pixels less than or equal to level to 0 and all other pixels to 255. Only works with 8-bit and 16-bit images. -
duplicate
Returns a duplicate of this image. -
scale
public abstract void scale(double xScale, double yScale) Scales the image by the specified factors. Does not change the image size.- See Also:
-
resize
Creates a new ImageProcessor containing a scaled copy of this image or ROI.- See Also:
-
resize
Creates a new ImageProcessor containing a scaled copy of this image or ROI, with the aspect ratio maintained. -
resize
Creates a new ImageProcessor containing a scaled copy of this image or ROI.- Parameters:
dstWidth
- Image width of the resulting ImageProcessordstHeight
- Image height of the resulting ImageProcessoruseAverging
- True means that the averaging occurs to avoid aliasing artifacts; the kernel shape for averaging is determined by the interpolationMethod. False if subsampling without any averaging should be used on downsizing. Has no effect on upsizing.- See Also:
-
resizeLinearly
Use linear interpolation to resize images that have a width or height of one. -
bin
Returns a copy of this image that has been reduced in size using binning. -
rotate
public abstract void rotate(double angle) Rotates the image or selection 'angle' degrees clockwise.- See Also:
-
translate
public void translate(double xOffset, double yOffset) Moves the image or selection vertically or horizontally by a specified number of pixels. Positive x values move the image or selection to the right, negative values move it to the left. Positive y values move the image or selection down, negative values move it up. -
translate
public void translate(int xOffset, int yOffset, boolean eraseBackground) Deprecated.replaced by translate(x,y) -
getHistogram
public abstract int[] getHistogram()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).
-
erode
public abstract void erode()Erodes the image or ROI using a 3x3 maximum filter. Requires 8-bit or RGB image. -
dilate
public abstract void dilate()Dilates the image or ROI using a 3x3 minimum filter. Requires 8-bit or RGB image. -
setLutAnimation
public void setLutAnimation(boolean lutAnimation) For 16 and 32 bit processors, set 'lutAnimation' true to have createImage() use the cached 8-bit version of the image. -
convertToByte
Returns an 8-bit version of this image as a ByteProcessor. -
convertToShort
Returns a 16-bit version of this image as a ShortProcessor. -
convertToFloat
Returns a 32-bit float version of this image as a FloatProcessor. For byte and short images, converts using a calibration function if a calibration table has been set using setCalibrationTable(). -
convertToRGB
Returns an RGB version of this image as a ColorProcessor. -
convertToByteProcessor
public ij.process.ByteProcessor convertToByteProcessor()Returns an 8-bit version of this image as a ByteProcessor. 16-bit and 32-bit pixel data are scaled from min-max to 0-255. -
convertToByteProcessor
public ij.process.ByteProcessor convertToByteProcessor(boolean scale) Returns an 8-bit version of this image as a ByteProcessor. 16-bit and 32-bit pixel data are scaled from min-max to 0-255 if 'scale' is true. -
convertToShortProcessor
public ij.process.ShortProcessor convertToShortProcessor()Returns a 16-bit version of this image as a ShortProcessor. 32-bit pixel data are scaled from min-max to 0-255. -
convertToShortProcessor
public ij.process.ShortProcessor convertToShortProcessor(boolean scale) Returns a 16-bit version of this image as a ShortProcessor. 32-bit pixel data are scaled from min-max to 0-255 if 'scale' is true. -
convertToFloatProcessor
Returns a 32-bit float version of this image as a FloatProcessor. For byte and short images, converts using a calibration function if a calibration table has been set using setCalibrationTable(). -
convertToColorProcessor
public ij.process.ColorProcessor convertToColorProcessor()Returns an RGB version of this image as a ColorProcessor. -
convolve
public abstract void convolve(float[] kernel, int kernelWidth, int kernelHeight) Performs a convolution operation using the specified kernel. KernelWidth and kernelHeight must be odd. -
autoThreshold
public void autoThreshold()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. -
getAutoThreshold
public int getAutoThreshold()Returns a pixel value (threshold) that can be used to divide the image into objects and background. It does this by taking a test threshold and computing the average of the pixels at or below the threshold and pixels above. It then computes the average of those two, increments the threshold, and repeats the process. Incrementing stops when the threshold is larger than the composite average. That is, threshold = (average background + average objects)/2. This description was posted to the ImageJ mailing list by Jordan Bevic. -
getAutoThreshold
public int getAutoThreshold(int[] histogram) This is a version of getAutoThreshold() that uses a histogram passed as an argument. -
setClipRect
Updates the clipping rectangle used by lineTo(), drawLine(), drawDot() and drawPixel(). The clipping rectangle is reset by passing a null argument or by calling resetRoi(). -
maskSizeError
-
getIndexSampleModel
-
getDefaultColorModel
Returns the default grayscale IndexColorModel. -
setSnapshotCopyMode
public void setSnapshotCopyMode(boolean b) The getPixelsCopy() method returns a reference to the snapshot buffer if it is not null and 'snapshotCopyMode' is true.- See Also:
-
getNChannels
public int getNChannels()Returns the number of color channels in the image. The color channels can be accessed by toFloat(channelNumber, fp) and written by setPixels(channelNumber, fp).- Returns:
- 1 for grayscale images, 3 for RGB images
-
toFloat
Returns a FloatProcessor with the image or one color channel thereof. The roi and mask are also set for the FloatProcessor.- Parameters:
channelNumber
- Determines the color channel, 0=red, 1=green, 2=blue. Ignored for grayscale images.fp
- Here a FloatProcessor can be supplied, or null. The FloatProcessor is overwritten when converting data (re-using its pixels array improves performance).- Returns:
- A FloatProcessor with the converted image data of the color channel selected
-
setPixels
Sets the pixels (of one color channel for RGB images) from a FloatProcessor.- Parameters:
channelNumber
- Determines the color channel, 0=red, 1=green, 2=blue.Ignored for grayscale images.fp
- The FloatProcessor where the image data are read from.
-
minValue
public double minValue()Returns the minimum possible pixel value. -
maxValue
public double maxValue()Returns the maximum possible pixel value. -
updateComposite
public void updateComposite(int[] rgbPixels, int channel) CompositeImage calls this method to generate an updated color image. -
setOverColor
public static void setOverColor(int red, int green, int blue) Sets the upper Over/Under threshold color. Can be called from a macro, e.g., call("ij.process.ImageProcessor.setOverColor", 0,255,255). -
setUnderColor
public static void setUnderColor(int red, int green, int blue) Set the lower Over/Under thresholding color. -
isBinary
public boolean isBinary()Returns 'true' if this is a binary image (8-bit-image with only 0 and 255). -
setUseBicubic
public static void setUseBicubic(boolean b) -
getStatistics
public ij.process.ImageStatistics getStatistics() -
blurGaussian
public void blurGaussian(double sigma) Blurs the image by convolving with a Gaussian function. -
applyMacro
Uses the Process/Math/Macro command to apply macro code to this image. -
getSliceNumber
public int getSliceNumber() -
setSliceNumber
public void setSliceNumber(int slice) PlugInFilterRunner uses this method to set the slice number. -
clone
Returns a shallow copy of this ImageProcessor, where this image and the copy share pixel data. Use the duplicate() method to create a copy that does not share the pixel data. -
setOverlay
public void setOverlay(ij.gui.Overlay overlay) This method is used to display virtual stack overlays. -
getOverlay
public ij.gui.Overlay getOverlay()
-