QUE?

modular_fractal.cpp

#include <iostream>
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>

using namespace std;
using namespace cv;

#define WINDOW_TITLE "Modular Fractal"
#define IMG_WSIZE 750
#define IMG_HSIZE 750


unsigned int mod = 10;


int main(){
	Mat img(Size(IMG_WSIZE, IMG_HSIZE), CV_8UC1);

	namedWindow(WINDOW_TITLE, CV_WINDOW_NORMAL);

	int iter = 1;
	while(waitKey(1)==-1){
		for (int i=0; i<img.rows; i++){
			uchar* ptr = img.ptr<uchar>(i);
			for(int j=0; j<img.cols; j++){
				ptr[j] = ((i+1)*(j+1))%(1+mod);
			}
		}
		imshow(WINDOW_TITLE, img);
		mod += iter;

		iter++;

		if(!mod) mod = 1;
	}


	waitKey(0);
	return 0;
}