You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

107 lines
2.1 KiB

#include <iostream>
#include <cstdlib>
#include <cmath>
#include <omp.h>
#include "Ttiming.h"
#include <opencv2/opencv.hpp>
using namespace std;
using namespace cv;
#define RX 5
#define RY 5
int main(int argc, char *argv[])
{
int i,j,k,l,m,n;
TTiming tt;
char *endptr;
int sumka_r, sumka_g, sumka_b;
int suma_wag = 0;
int ratio[RX][RY] =
{
{1, 4, 7, 4, 1},
{4, 16, 26, 16, 4},
{7, 26, 41, 26, 7},
{4, 16, 26, 16, 4},
{1, 4, 7, 4, 1}
};
if (argc < 4)
{
cerr << "Usage: " << argv[0] << " <n> <input_image> <output_image>" << endl;
exit(1);
}
int threads_num = strtol(argv[1], &endptr, 10);
if (*endptr)
{
cerr << "Invalid number of threads format" << endl;
exit(1);
}
if (threads_num <= 0)
{
cerr << "The number of threads must be positive" << endl;
exit(1);
}
for (i=0; i<RX; ++i)
for (j=0; j<RY; ++j)
suma_wag += ratio[i][j];
//ustawienie odpowiedniej ilosci watkow
omp_set_num_threads(threads_num);
Mat img = cv::imread(argv[2]);
if(!img.data )
{
cerr << "File " << argv[2] << " does not exist" << endl;
exit(1);
}
Mat img_out;
img_out.create(img.rows, img.cols, img.type());
tt.Begin();
#pragma omp parallel for private(i, j, k, l, m, n, sumka_r, sumka_g, sumka_b)
for (i=0; i<img.rows; ++i)
{
for (j=0; j<img.cols; ++j)
{
if (i<2 || i>img.rows-3 || j<2 || j>img.cols-3)
{
img_out.at<Vec3b>(i, j)[0] = img.at<Vec3b>(i, j)[0];
img_out.at<Vec3b>(i, j)[1] = img.at<Vec3b>(i, j)[1];
img_out.at<Vec3b>(i, j)[2] = img.at<Vec3b>(i, j)[2];
}
else
{
sumka_r = 0;
sumka_g = 0;
sumka_b = 0;
m=i-2;
for (k=0; k<RX; ++k,++m)
{
n=j-2;
for (l=0; l<RY; ++l,++n)
{
sumka_b += ratio[k][l] * img.at<Vec3b>(m, n)[0];
sumka_g += ratio[k][l] * img.at<Vec3b>(m, n)[1];
sumka_r += ratio[k][l] * img.at<Vec3b>(m, n)[2];
}
}
img_out.at<Vec3b>(i, j).val[0] = sumka_b / suma_wag;
img_out.at<Vec3b>(i, j).val[1] = sumka_g / suma_wag;
img_out.at<Vec3b>(i, j).val[2] = sumka_r / suma_wag;
}
}
}
long elapsed = tt.End();
cout << "Time: " << elapsed << " ms" << endl;
imwrite(argv[3], img_out);
exit(0);
}