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 (!((ByteProcessor) imp.getProcessor()).isBinary()) {
IJ.error("8-bit binary (black and white only) image required.");
return DONE;
}
return IJ.setupDialog(imp, flags);
}
}
private void makeBand(ImagePlus imp) {
Roi roi = imp.getRoi();
if (roi == null) {
noRoi("Make Band");
return;
}
Roi roiOrig = roi;
if (!roi.isArea()) {
IJ.error("Make Band", "Area selection required");
return;
}
Calibration cal = imp.getCalibration();
double pixels = bandSize;
double size = pixels * cal.pixelWidth;
int decimalPlaces = 0;
if ((int) size != size) decimalPlaces = 2;
GenericDialog gd = new GenericDialog("Make Band");
gd.addNumericField("Band Size:", size, decimalPlaces, 4, cal.getUnits());
gd.showDialog();
if (gd.wasCanceled()) return;
size = gd.getNextNumber();
if (Double.isNaN(size)) {
IJ.error("Make Band", "invalid number");
return;
}
int n = (int) Math.round(size / cal.pixelWidth);
if (n > 255) {
IJ.error("Make Band", "Cannot make bands wider that 255 pixels");
return;
}
int width = imp.getWidth();
int height = imp.getHeight();
Rectangle r = roi.getBounds();
ImageProcessor ip = roi.getMask();
if (ip == null) {
ip = new ByteProcessor(r.width, r.height);
ip.invert();
}
ImageProcessor mask = new ByteProcessor(width, height);
mask.insert(ip, r.x, r.y);
ImagePlus edm = new ImagePlus("mask", mask);
boolean saveBlackBackground = Prefs.blackBackground;
Prefs.blackBackground = false;
int saveType = EDM.getOutputType();
EDM.setOutputType(EDM.BYTE_OVERWRITE);
IJ.run(edm, "Distance Map", "");
EDM.setOutputType(saveType);
Prefs.blackBackground = saveBlackBackground;
ip = edm.getProcessor();
ip.setThreshold(0, n, ImageProcessor.NO_LUT_UPDATE);
int xx = -1, yy = -1;
for (int x = r.x; x < r.x + r.width; x++) {
for (int y = r.y; y < r.y + r.height; y++) {
if (ip.getPixel(x, y) < n) {
xx = x;
yy = y;
break;
}
}
if (xx >= 0 || yy >= 0) break;
}
int count = IJ.doWand(edm, xx, yy, 0, null);
if (count <= 0) {
IJ.error("Make Band", "Unable to make band");
return;
}
ShapeRoi roi2 = new ShapeRoi(edm.getRoi());
if (!(roi instanceof ShapeRoi)) roi = new ShapeRoi(roi);
ShapeRoi roi1 = (ShapeRoi) roi;
roi2 = roi2.not(roi1);
Undo.setup(Undo.ROI, imp);
transferProperties(roiOrig, roi2);
imp.setRoi(roi2);
bandSize = n;
}