OpenCV C++

#include <opencv2/opencv.hpp>
#include <iostream>
#include <string>
#include <sstream>
#include <vector>



using namespace cv;
using namespace std;


String folderpath = "C:/Users/Junior/Desktop/Segmentação atualizada 05-06-16/FiltroRosa*.jpg";
vector<String> filenames;

vector<string> split(string str, char delimiter) {
	vector<string> internal;
	stringstream ss(str); // Turn the string into a stream.
	string tok;

	while (getline(ss, tok, delimiter)) {
		internal.push_back(tok);
	}

	return internal;
}


int main()
{
	cv::glob(folderpath, filenames);
	int a = 0;
	for (size_t i = 0; i<filenames.size(); i++)
	{
		//printf("%d\n", i);
		Mat bw = imread(filenames[i], CV_LOAD_IMAGE_GRAYSCALE);
		cout << size(bw) << endl;


		string str = filenames[i];
		Mat labelImage(bw.size(), CV_32S);
		cout << size(labelImage) << endl;

		Mat erode1, dilate1;
		int erosion_size = 3;
		Mat element = getStructuringElement(cv::MORPH_ELLIPSE,
			cv::Size(2 * erosion_size + 1, 2 * erosion_size + 1),
			cv::Point(erosion_size, erosion_size));

		erode(bw, erode1, element);
		dilate(erode1, dilate1, element);

			vector<string> sep = split(str, '\\');
			int contador;
			string temp;
			for (contador = 0; contador < sep.size(); ++contador)
			{
				//cout << sep[contador] << endl;
				temp = sep[contador];
				//system("pause");
			}

			//mostra ou salva dst para cada label
			string strDst = temp + '_' + to_string(label) + ".jpg";
			cout << strDst << endl;
			cout << bw.size() << endl;
			cout << size(dst) << endl;
			imwrite(strDst, dst);
			//imshow(strDst, dst);
			//waitKey();
			//destroyWindow(strDst);

		}
	}
	return 0;
}