opencv c++处理边缘

#include<opencv2\opencv.hpp>
#include<iostream>
#include<math.h>

using namespace cv;
int main()
{
	Mat src = imread("C:/Users/asus/Desktop/tupian/1.jpg");
	if (src.empty())
	{
		printf("could not load image...\n");
		return -1;
	}
	namedWindow("opencv setup demo", WINDOW_AUTOSIZE);
	imshow("opencv setup demo", src);
	namedWindow("output window", WINDOW_AUTOSIZE);
	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(123456);
	int borderType = BORDER_DEFAULT;
	int c = 0;
	while (true)
	{
		c = waitKey(500);
		if ((char)c == 27)
		{
			break;
		}
		if ((char)c == 'r')
		{
			borderType = BORDER_REPLICATE;
		}
		else if ((char)c == 'w')
		{
			borderType = BORDER_WRAP;
		}
		else if ((char)c == 'c')
		{
			borderType = BORDER_CONSTANT;
		}
		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 window", dst);
	}
	//
	waitKey(0);
	return 0;

}

#include<opencv2\opencv.hpp>
#include<iostream>
#include<math.h>

using namespace cv;
int main()
{
	Mat src = imread("C:/Users/asus/Desktop/tupian/1.jpg");
	if (src.empty())
	{
		printf("could not load image...\n");
		return -1;
	}
	namedWindow("opencv setup demo", WINDOW_AUTOSIZE);
	imshow("opencv setup demo", src);
	namedWindow("output window", WINDOW_AUTOSIZE);
	Mat dst;
	GaussianBlur(src, dst, Size(5, 5), 0, 0, BORDER_REPLICATE);
	imshow("output window", dst);
	waitKey(0);
	return 0;

}