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• BinaryOrbit.java

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imageJ.BinaryOrbit Maven / Gradle / Ivy

package imageJ;

import ij.IJ;
import ij.ImagePlus;
import ij.Prefs;
import ij.gui.DialogListener;
import ij.gui.GenericDialog;
import ij.plugin.filter.EDM;
import ij.plugin.filter.ExtendedPlugInFilter;
import ij.plugin.filter.PlugInFilterRunner;
import ij.plugin.frame.ThresholdAdjuster;
import ij.process.ByteProcessor;
import ij.process.FloodFiller;
import ij.process.ImageProcessor;

import java.awt.*;

/** Implements the Erode, Dilate, Open, Close, Outline, Skeletonize
 and Fill Holes commands in the Process/Binary submenu.
 Gabriel Landini contributed the clever binary fill algorithm
 that fills holes in objects by filling the background.
 Version 2009-06-23 preview added, interations can be aborted by escape (Michael Schmid)
 */
public class BinaryOrbit implements ExtendedPlugInFilter, DialogListener {
	static final int MAX_ITERATIONS = 100;
	static final String NO_OPERATION = "Nothing";
	static final String[] outputTypes = {"Overwrite", "8-bit", "16-bit", "32-bit"};
	static final String[] operations = {NO_OPERATION, "Erode", "Dilate", "Open", "Close", "Outline", "Fill Holes", "Skeletonize"};

	//parameters / options
	static int iterations = 1;      //iterations for erode, dilate, open, close
	static int count = 1;           //nearest neighbor count for erode, dilate, open, close
	String operation = NO_OPERATION;  //for dialog; will be copied to 'arg' for actual previewing

	String arg;
	ImagePlus imp;                  //null if only setting options with no preview possibility
	PlugInFilterRunner pfr;
	boolean doOptions;              //whether options dialog is required
	boolean previewing;
	boolean escapePressed;
	int foreground, background;
	int flags = DOES_8G | DOES_8C | SUPPORTS_MASKING | PARALLELIZE_STACKS | KEEP_PREVIEW | KEEP_THRESHOLD;
	int nPasses;

	public int setup(String arg, ImagePlus imp) {
		this.arg = arg;
		IJ.register(BinaryOrbit.class);
		doOptions = arg.equals("options");
		if (doOptions) {
			if (imp == null) return NO_IMAGE_REQUIRED;  //options dialog does not need a (suitable) image
			ImageProcessor ip = imp.getProcessor();
			if (!(ip instanceof ByteProcessor)) return NO_IMAGE_REQUIRED;
			if (!ip.isBinary()) return NO_IMAGE_REQUIRED;
		}
		return flags;
	}

	public int showDialog (ImagePlus imp, String command, PlugInFilterRunner pfr) {
		if (doOptions) {
			this.imp = imp;
			this.pfr = pfr;
			GenericDialog gd = new GenericDialog("Binary Options");
			gd.addNumericField("Iterations (1-"+MAX_ITERATIONS+"):", iterations, 0, 3, "");
			gd.addNumericField("Count (1-8):", count, 0, 3, "");
			gd.addCheckbox("Black background", Prefs.blackBackground);
			gd.addCheckbox("Pad edges when eroding", Prefs.padEdges);
			gd.addChoice("EDM output:", outputTypes, outputTypes[EDM.getOutputType()]);
			if (imp != null) {
				gd.addChoice("Do:", operations, operation);
				gd.addPreviewCheckbox(pfr);
				gd.addDialogListener(this);
				previewing = true;
			}
			gd.addHelp(IJ.URL+"/docs/menus/process.html#options");
			gd.showDialog();
			previewing = false;
			if (gd.wasCanceled()) return DONE;
			if (imp==null) {                 //options dialog only, no do/preview
				dialogItemChanged(gd, null); //read dialog result
				return DONE;
			}
			return operation.equals(NO_OPERATION) ? DONE : IJ.setupDialog(imp, flags);
		} else {   //no dialog, 'arg' is operation type
			if (!imp.getProcessor().isBinary()) {
				IJ.error("8-bit binary (black and white only) image required.");
				return DONE;
			}
			return IJ.setupDialog(imp, flags);
		}
	}

	public boolean dialogItemChanged (GenericDialog gd, AWTEvent e) {
		iterations = (int)gd.getNextNumber();
		count = (int)gd.getNextNumber();
		boolean bb = Prefs.blackBackground;
		Prefs.blackBackground = gd.getNextBoolean();
		if ( Prefs.blackBackground!=bb)
			ThresholdAdjuster.update();
		Prefs.padEdges = gd.getNextBoolean();
		EDM.setOutputType(gd.getNextChoiceIndex());
		boolean isInvalid = gd.invalidNumber();
		if (iterations<1) {iterations = 1; isInvalid = true;}
		if (iterations>MAX_ITERATIONS) {iterations = MAX_ITERATIONS; isInvalid = true;}
		if (count < 1)    {count = 1; isInvalid = true;}
		if (count > 8)    {count = 8; isInvalid = true;}
		if (isInvalid) return false;
		if (imp != null) {
			operation = gd.getNextChoice();
			arg = operation.toLowerCase();
		}
		return true;
	}

	public void setNPasses (int nPasses) {
		this.nPasses = nPasses;
	}

	public void run (ImageProcessor ip) {
		int fg = Prefs.blackBackground ? 255 : 0;
		foreground = ip.isInvertedLut() ? 255-fg : fg;
		background = 255 - foreground;
		ip.setSnapshotCopyMode(true);
		if (arg.equals("outline"))
			outline(ip);
		else if (arg.startsWith("fill"))
			fill(ip, foreground, background);
		else if (arg.startsWith("skel")) {
			ip.resetRoi(); skeletonize(ip);
		} else if (arg.equals("erode") || arg.equals("dilate"))
			doIterations(ip, arg);
		else if (arg.equals("open")) {
			doIterations(ip, "erode");
			doIterations(ip, "dilate");
		} else if (arg.equals("close")) {
			doIterations(ip, "dilate");
			doIterations(ip, "erode");
		}
		ip.setSnapshotCopyMode(false);
		ip.setBinaryThreshold();
	}

	void doIterations (ImageProcessor ip, String mode) {
		if (escapePressed) return;
		if (!previewing && iterations>1)
			IJ.showStatus(arg+"... press ESC to cancel");
		for (int i=0; i