Open CV Url

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Filter Images and Videos

Image
In the image process the image filtering is a neighborhood operation in which the value of any given pixel in the output image is determined by applying a certain algorithm to the pixel values ​​in the vicinity of the corresponding input pixel . This technique is commonly used to smooth, sharpen and detect edges of images and videos. Filtering:   neighborhood operation   pixel algorithm to the pixel values ​​in the vicinity of the corresponding input pixel . smooth, sharpen and detect edges of images and videos. Example Algorithms  Mean Filter Weighted Average Filter Median Filter Min Filter Max Filter Inbuilt functions: blur : function blur(image, image_blurred_with_3x3_kernel, Size(3, 3)); blur(image, image_blurred_with_5x5_kernel, Size(5, 5));         String window_name = "The Guitar"; String window_name_blurred_with_3x3_kernel = "The Guitar Blurred with 3 x 3 Kernel"; S...
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Create Tranck Bar:

        Mat src = imread("MyPic.JPG");         namedWindow("My Window", 1);         int iSliderValue1 = 50; createTrackbar("Brightness", "My Window", & iSliderValue1 , 100); int iSliderValue2 = 50; createTrackbar("Contrast", "My Window", & iSliderValue2 , 100);                  Mat dst;          src .convertTo(dst, -1, dContrast, iBrightness);         imshow("My Window", dst);          IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII //Uncomment the following line if you are compiling this code in Visual Studio #include "stdafx.h" #include <opencv2/opencv.hpp> #include <iostream> #include <opencv2/cv.h> #include <opencv2/highgui.h> using namespace cv; using namespace std; /// Global Variables const int ...
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OpenCV Programming 1

1. Display data type. #include "pch.h" #include <opencv2/highgui/highgui.hpp> #include <opencv2/imgproc.hpp> #include <iostream> using namespace cv; using namespace std; int main(int argc, char** argv) { int i = 2; while (i != 0) { cout << "enter image martix size"; cin >> i; if (i == -1) { break; } Mat M(i, i, CV_8UC3, Scalar(0, 0, 255)); cout << "M = " << endl << " " << M << endl << endl; } }
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