docs: public static void main( String args[] ){
  
  		BufferedImage input = UtilImageIO.loadImage(fileName);
  		GrayF32 inputF32 = ConvertBufferedImage.convertFrom(input,(GrayF32)null);
  
  		GrayF32 blurred = new GrayF32(inputF32.width,inputF32.height);
  		GrayF32 derivX = new GrayF32(inputF32.width,inputF32.height);
  		GrayF32 derivY = new GrayF32(inputF32.width,inputF32.height);
  		GrayF32 intensity = new GrayF32(inputF32.width,inputF32.height);
  		GrayF32 orientation = new GrayF32(inputF32.width,inputF32.height);
  		GrayF32 suppressed = new GrayF32(inputF32.width,inputF32.height);
  		GrayS8 direction = new GrayS8(inputF32.width,inputF32.height);
  		GrayU8 output = new GrayU8(inputF32.width,inputF32.height);
  
  		BlurStorageFilter<GrayF32> blur = FactoryBlurFilter.gaussian(GrayF32.class,-1,2);
  		ImageGradient<GrayF32,GrayF32> gradient = FactoryDerivative.sobel(GrayF32.class,null);
  
  		blur.process(inputF32,blurred);
  		gradient.process(blurred,derivX,derivY);
  
  		float threshLow = 5;
  		float threshHigh = 40;
  
  		GradientToEdgeFeatures.intensityE(derivX, derivY, intensity);
  		GradientToEdgeFeatures.direction(derivX, derivY, orientation);
  		GradientToEdgeFeatures.discretizeDirection4(orientation, direction);
  		GradientToEdgeFeatures.nonMaxSuppression4(intensity, direction, suppressed);
  
  		BufferedImage renderedOrientation = VisualizeEdgeFeatures.renderOrientation4(direction,suppressed,threshLow,null);
  
  		HysteresisEdgeTraceMark hysteresis = new HysteresisEdgeTraceMark();
  		hysteresis.process(suppressed,direction,threshLow,threshHigh,output);
  
  		BufferedImage renderedLabel = VisualizeBinaryData.renderBinary(output, false, null);
  
  		ListDisplayPanel gui =  new ListDisplayPanel();
  		gui.addImage(suppressed,"Suppressed Intensity");
  		gui.addImage(intensity,"Raw Intensity");
  		gui.addImage(renderedOrientation,"Orientation");
  		gui.addImage(renderedLabel, "Labeled Contours");
  
  		ShowImages.showWindow(gui,"Visualized Canny Steps", true);
  	}