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我正在尝试一个数字识别。但在轮廓找到后。如图所示，我在主边界框内获得数字0,6,8 ......的边界框。请帮助我完成图像处理的第一步。 我曾尝试使用组矩形，但他们不工作。请检查下面的代码。谢谢。删除数字识别的边界框内的边界框
图片：http://tinypic.com/r/1twx05/5
int main()
{
Mat inimage, gray;
inimage = imread("sample.jpg");
cvtColor(inimage, gray, COLOR_BGR2GRAY);
GaussianBlur(gray, gray, Size(5,5), 0);
adaptiveThreshold(gray, gray, 255, ADAPTIVE_THRESH_GAUSSIAN_C, THRESH_BINARY_INV, 11, 0);
vector<vector<Point> > contours;
vector<Vec4i> hierarchy;
findContours(gray, contours, hierarchy, CV_RETR_TREE, CV_CHAIN_APPROX_SIMPLE, Point(0, 0));
vector<vector<Point> > contours_poly(contours.size());
vector<Rect> boundRect(contours.size());
for(int i = 0; i < contours.size(); i++)
{
approxPolyDP(Mat(contours[i]), contours_poly[i], 3, true);
boundRect[i] = boundingRect(Mat(contours_poly[i]));
}
//groupRectangles(boundRect, 1, 0.2);
Scalar color = Scalar(0,0,255);
for(int i = 0; i< contours.size(); i++)
{
//drawContours(inimage, contours_poly, i, color, 1, 8, vector<Vec4i>(), 0, Point());
rectangle(inimage, boundRect[i].tl(), boundRect[i].br(), color, 1, 8, 0);
}
namedWindow("Contours", CV_WINDOW_AUTOSIZE);
imshow("Contours", inimage);
waitKey(0);
return 0;
}