could someone ( using last version of OpenCV ) try the code below and share his remarks.
thanks in advance.
#include "opencv2\opencv.hpp"
using namespace cv;
int main() {
Mat binary(Size(400, 400), CV_8U, Scalar(0));
rectangle(binary, Rect(200, 200, 100, 100), Scalar(255), -1);
Mat test1, test2, test3, test4;
for (int i = 0; i < 90; i++)
{
erode(binary, test1, Mat(Size(i, i), CV_8U, Scalar(1)));
erode(binary, test2, Mat(Size(i, i), CV_8U, Scalar(0)));
dilate(binary, test3, Mat(Size(i, i), CV_8U, Scalar(1)));
dilate(binary, test4, Mat(Size(i, i), CV_8U, Scalar(0)));
imshow("binary", binary);
imshow("test1", test1);
imshow("test2", test2);
imshow("test3", test3);
imshow("test4", test4);
moveWindow("test1", 0, 0);
moveWindow("test2", 400, 0);
moveWindow("test3", 0, 400);
moveWindow("test4", 400, 400);
waitKey(100);
}
waitKey();
return 0;
}