Method run

ij/src/main/java/ij/plugin/StackReducer.java:14–34

(String arg)

	private boolean hyperstack, reduceSlices;

	public void run(String arg) {
		imp = WindowManager.getCurrentImage();
		if (imp==null)
			{IJ.noImage(); return;}
		ImageStack stack = imp.getStack();
		int size = stack.size();
		if (size==1 || (imp.getNChannels()==size&&imp.isComposite()))
			{IJ.error("Stack or hyperstack required"); return;}
		if (!showDialog(stack))
			return;
		if (!hyperstack && (stack instanceof VirtualStack)) {
			int previousSize = stack.size();
			((VirtualStack)stack).reduce(factor);
			if (stack.size()<previousSize)
				return;
		}
		if (hyperstack)
			reduceHyperstack(imp, factor, reduceSlices);
		else
			reduceStack(imp, factor);
	}

	public boolean showDialog(ImageStack stack) {
		hyperstack = imp.isHyperStack();