int a = 0;
	int b = 0;
	for (int i = 0; i < img.rows; i++)
	{
		for (int j = 0; j < img.cols; j++)
		{
			b = 0;
			while (b != k)
			{
				a = 0;
				while (a != n)
				{
					if (img.at<uchar>(i + a, j + b) == 0)
					{
						img.at<uchar>(i + a, j + b) = 100;
					}
					a++;
				}
				b++;
			}
		}
	}