Apply Erode Filter Effect on an Image

Steps to Apply Erode Filter Effect on an Image | OpenCV with Visual Studio in Windows 10. In this Tutorial, we are going to apply Erode Filter Effect on an image using OpenCV.

1. First of all, Follow this tutorial to Install & Configure OpenCV with Visual Studio 2015


2. Copy the Full Source Code to Apply Erode Filter on an Image from here:

#include<opencv2/highgui/highgui.hpp>

#include<iostream>

int main()
{
 //Load an Image
 IplImage* img = cvLoadImage("C:/Briefcase/Chess.jpg");
 cv::namedWindow("Image", CV_WINDOW_AUTOSIZE);
 cvShowImage("Image", img);

 //Erode Effect
 cvErode(img, img, 0, 2);
 cv::namedWindow("ErodeEffect", CV_WINDOW_AUTOSIZE);
 cvShowImage("ErodeEffect", img);

 //Wait Key press
 cvWaitKey(0); 

 //destroy
 cvDestroyWindow("Image");
 cvDestroyWindow("ErodeEffect");

 return 0;
}

OR
Get ErodeEffect.cpp from Github:
Download ErodeEffect.cpp


3. Paste full source code and Run it (Ctrl+F5 or F5).

OUTPUT

Load Image OpenCV

Eroded Image OpenCV

Explaination : Function used: cvErode(img, img, 0, 2) - This function can process images and erode an image.

• 1^st parameter is the source image.
• 2^nd parameter is the destination or resultant image which is an eroded image.
• 3^rd parameter is the structuring element used. If it is 0, a 3 X 3 rectangular structuring element is used.
• 4^th parameter is the number of times, effect is applied.

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