/**
* Returns an ImageProcessor for the specified slice, were 1<=n<=nslices. Returns null if the
* stack is empty.
*/
public ImageProcessor getProcessor(int n) {
ImageProcessor ip;
if (n < 1 || n > nSlices) throw new IllegalArgumentException(outOfRange + n);
if (nSlices == 0) return null;
if (stack[0] == null) throw new IllegalArgumentException("Pixel array is null");
if (stack[0] instanceof byte[]) ip = new ByteProcessor(width, height, null, cm);
else if (stack[0] instanceof short[]) ip = new ShortProcessor(width, height, null, cm);
else if (stack[0] instanceof int[]) ip = new ColorProcessor(width, height, null);
else if (stack[0] instanceof float[]) ip = new FloatProcessor(width, height, null, cm);
else throw new IllegalArgumentException("Unknown stack type");
ip.setPixels(stack[n - 1]);
if (min != Double.MAX_VALUE && ip != null && !(ip instanceof ColorProcessor))
ip.setMinAndMax(min, max);
if (cTable != null) ip.setCalibrationTable(cTable);
return ip;
}
