docs: public static BufferedImage colorizeSign(ImageGray src, BufferedImage dst, double normalize) {
  		dst = checkInputs(src, dst);
  
  		if (normalize <= 0) {
  			normalize = GImageStatistics.maxAbs(src);
  		}
  
  		if (normalize == 0) {
  			// sets the output to black
  			ConvertBufferedImage.convertTo(src,dst,true);
  			return dst;
  		}
  
  		if (src.getClass().isAssignableFrom(GrayF32.class)) {
  			return colorizeSign((GrayF32) src, dst, (float) normalize);
  		} else {
  			return colorizeSign((GrayI) src, dst, (int) normalize);
  		}
  	}