Image Smoothing - Closing

Introduction

Image smoothing can be performed by application of morphological operations in ordered fashion.

• First dilate image
• Then erode it

Image gets smoothed by adding new bright pixels, here we’re considering bright pixels to be our foreground pixels.

Size of structuring element i.e. order of kernel to be used Dilation & Erosion, can be specified, which will control extent of smoothing.

Usage

• Put this code snippet into Java source file.

import in.itzmeanjan.filterit.ImportExportImage;
import in.itzmeanjan.filterit.smoothing.Closing;

public class Main{

	public static void main(String [] args){
		System.out.println(
            ImportExportImage.exportImage(
                new Closing().smooth("eye.jpg", 5, 5), 
                "closed.jpg"));
	}

}

• Compile & run, make sure you’ve added in.itzmeanjan.filterit.jar as your project dependency.

Result

Generated by applying closing operation on left one, while size of kernel for both dilation & erosion set to 11 x 11 i.e. order of neighbourhood used 5.

Original	Smoothed

Thanking you :)