Apply Dilate Filter Effect on an Image

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

 //Dilate Effect
 cvDilate(img, img, 0, 2);
 cv::namedWindow("DilateEffect", CV_WINDOW_AUTOSIZE);
 cvShowImage("DilateEffect", img);

 //Wait Key press
 cvWaitKey(0);

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

 return 0;
}

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


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

OUTPUT

Load Image OpenCV

Dilated Image OpenCV

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

• 1^st parameter is the source image.
• 2^nd parameter is the destination or resultant image which is a dilated 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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