opencv15-边缘处理

#include<opencv2\opencv.hpp>
#include<opencv2\highgui\highgui.hpp>
#include<iostream>
#include<math.h>
using namespace std;
using namespace cv;
int main()
{
	Mat src = imread("E:\\vs2015\\opencvstudy\\1.jpg", 1);
	if (src.empty())
	{
		cout << "could not load the src image!" << endl;
		return -1;
	}
	char *input_title = "input Image";
	imshow(input_title, src);

	Mat dst;
	int top = (int)(0.05*src.rows);
	int bottom =(int)( 0.05*src.rows);
	int left = (int)(0.05*src.cols);
	int right = (int)(0.05*src.cols);
	RNG rng(12345);
	int borderType = BORDER_DEFAULT;
	int c = 0;
	while (true)
	{
		c = waitKey(500);
		if ((char)c == 27)  //ESC
		{
			break;
		}
		if ((char)c == 'r')
		{
			borderType = BORDER_REPLICATE;
		}
		else if ((char)c == 'w')
		{
			borderType = BORDER_WRAP;
		}
		else if ((char)c == 'c')
		{
			borderType = BORDER_DEFAULT;
		}
		Scalar color = Scalar(rng.uniform(0, 255), rng.uniform(0, 255), rng.uniform(0, 255));
		copyMakeBorder(src, dst, top, bottom, left, right, borderType, color);
		imshow("output image", dst);	
	}


	GaussianBlur(src, dst, Size(5, 5), 0, 0, BORDER_DEFAULT);
	//waitKey(0);
	return 0;
}