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 < iterations; i++) {
if (Thread.currentThread().isInterrupted()) return;
if (IJ.escapePressed()) {
escapePressed = true;
ip.reset();
return;
}
if (mode.equals("erode")) ((ByteProcessor) ip).erode(count, background);
else ((ByteProcessor) ip).dilate(count, background);
}
}
void skeletonize(ImageProcessor ip) {
if (Prefs.blackBackground) ip.invert();
boolean edgePixels = hasEdgePixels(ip);
ImageProcessor ip2 = expand(ip, edgePixels);
((ByteProcessor) ip2).skeletonize();
ip = shrink(ip, ip2, edgePixels);
if (Prefs.blackBackground) ip.invert();
}
void outline(ImageProcessor ip) {
if (Prefs.blackBackground) ip.invert();
((ByteProcessor) ip).outline();
if (Prefs.blackBackground) ip.invert();
}