public ScalingGrayscaleMeasure(FastGrayscaleMeasure measure) {
public ScalingGrayscaleMeasure(StagedGrayscaleMeasure measure) {
	public ScalingGrayscaleMeasure(FastGrayscaleMeasure measure) {		if (measure == null)			throw new NullPointerException("measure == null");		this.measure = measure;	}