docs: public static GrayU8 thin(GrayU8 input , int maxIterations, GrayU8 output ) {
  
  		output = InputSanityCheck.checkDeclare(input, output);
  
  		output.setTo(input);
  		BinaryThinning thinning = new BinaryThinning();
  
  		thinning.apply(output,maxIterations);
  
  		return output;
  	}