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Дата изменения: Thu Dec 2 23:03:11 2010
Дата индексирования: Mon Oct 1 21:34:38 2012
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Поисковые слова: arp 220
Wand (ImageJ API)

ij.gui
Class Wand

java.lang.Object
  extended by ij.gui.Wand

public class Wand
extends java.lang.Object

This class implements ImageJ's wand (tracing) tool. The wand selects pixels of equal or similar value or thresholded pixels forming a contiguous area. The wand creates selections that have only one boundary line (inner holes are not excluded from the selection). There may be holes at the boundary, however, if the boundary line touches the same vertex twice (both in 4-connected and 8-connected mode). Version 2009-06-01 (code refurbished; tolerance, 4- & 8-connected options added)


Field Summary
static int EIGHT_CONNECTED
          Wand operation type: trace outline of 8-connected pixels
static int FOUR_CONNECTED
          Wand operation type: trace outline of 4-connected pixels
static int LEGACY_MODE
          Wand operation type similar to that of ImageJ 1.42p and before; for backwards compatibility.
 int npoints
          The number of points in the generated outline.
 int[] xpoints
          The x-coordinates of the points in the outline.
 int[] ypoints
          The y-coordinates of the points in the outline.
 
Constructor Summary
Wand(ImageProcessor ip)
          Constructs a Wand object from an ImageProcessor.
 
Method Summary
static boolean allPoints()
           
 void autoOutline(int startX, int startY)
          Traces the boundary of an area of uniform color, where 'startX' and 'startY' are somewhere inside the area.
 void autoOutline(int startX, int startY, double lower, double upper)
          Traces an object defined by lower and upper threshold values or an interior hole; whatever is found first ('legacy mode').
 void autoOutline(int startX, int startY, double lower, double upper, int mode)
          Traces an object defined by lower and upper threshold values.
 void autoOutline(int startX, int startY, double tolerance, int mode)
          Traces the boundary of the area with pixel values within 'tolerance' of the value of the pixel at the starting location.
 void autoOutline(int startX, int startY, int lower, int upper)
          This is a variation of legacy autoOutline that uses int threshold arguments.
static void setAllPoints(boolean b)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

FOUR_CONNECTED

public static final int FOUR_CONNECTED
Wand operation type: trace outline of 4-connected pixels

See Also:
Constant Field Values

EIGHT_CONNECTED

public static final int EIGHT_CONNECTED
Wand operation type: trace outline of 8-connected pixels

See Also:
Constant Field Values

LEGACY_MODE

public static final int LEGACY_MODE
Wand operation type similar to that of ImageJ 1.42p and before; for backwards compatibility. In this mode, no checking is done whether the foreground or the background gets selected; four- or 8-connected behaviour depends on foreground/background and (if no selection) on whether the initial pixel is on a 1-pixel wide line.

See Also:
Constant Field Values

npoints

public int npoints
The number of points in the generated outline.


xpoints

public int[] xpoints
The x-coordinates of the points in the outline. A vertical boundary at x separates the pixels at x-1 and x.


ypoints

public int[] ypoints
The y-coordinates of the points in the outline. A horizontal boundary at y separates the pixels at y-1 and y.

Constructor Detail

Wand

public Wand(ImageProcessor ip)
Constructs a Wand object from an ImageProcessor.

Method Detail

autoOutline

public void autoOutline(int startX,
                        int startY,
                        double lower,
                        double upper,
                        int mode)
Traces an object defined by lower and upper threshold values. 'mode' can be FOUR_CONNECTED or EIGHT_CONNECTED. ('LEGACY_MODE' is also supported and may result in selection of interior holes instead of the thresholded area if one clicks left of an interior hole). The start coordinates must be inside the area or left of it. When successful, npoints>0 and the boundary points can be accessed in the public xpoints and ypoints fields.


autoOutline

public void autoOutline(int startX,
                        int startY,
                        double lower,
                        double upper)
Traces an object defined by lower and upper threshold values or an interior hole; whatever is found first ('legacy mode'). For compatibility with previous versions of ImageJ. The start coordinates must be inside the area or left of it. When successful, npoints>0 and the boundary points can be accessed in the public xpoints and ypoints fields.


autoOutline

public void autoOutline(int startX,
                        int startY,
                        int lower,
                        int upper)
This is a variation of legacy autoOutline that uses int threshold arguments.


autoOutline

public void autoOutline(int startX,
                        int startY)
Traces the boundary of an area of uniform color, where 'startX' and 'startY' are somewhere inside the area. When successful, npoints>0 and the boundary points can be accessed in the public xpoints and ypoints fields. For compatibility with previous versions of ImageJ only; otherwise use the reliable method specifying 4-connected or 8-connected mode and the tolerance.


autoOutline

public void autoOutline(int startX,
                        int startY,
                        double tolerance,
                        int mode)
Traces the boundary of the area with pixel values within 'tolerance' of the value of the pixel at the starting location. 'tolerance' is in uncalibrated units. 'mode' can be FOUR_CONNECTED or EIGHT_CONNECTED. Mode LEGACY_MODE is for compatibility with previous versions of ImageJ; ignored if tolerance > 0. Mode bit THRESHOLDED_MODE for internal use only; it is set by autoOutline with 'upper' and 'lower' arguments. When successful, npoints>0 and the boundary points can be accessed in the public xpoints and ypoints fields.


setAllPoints

public static void setAllPoints(boolean b)

allPoints

public static boolean allPoints()