OpenCV Bounding Box

Question

I am working on software using OpenCV in C++ environment. The objective is to detect a boxing glove and draw a bounding box around gloves contours.

Answer 1

as b_m mentioned, you need to apply the morphological operations. Then I'd do something like finding the largest contour in the image and draw the bounding box around that contour only. I had created the following function for a project of mine which I think will help you if used in a correct manner

CvSeq* findLargestContour(CvSeq* contours){

  CvSeq* current_contour = contours;
  double largestArea = 0;
  CvSeq* largest_contour = NULL;

  // check we at least have some contours

  if (contours == NULL){return NULL;}

  while (current_contour != NULL){

      double area = fabs(cvContourArea(current_contour));

      if(area > largestArea){
          largestArea = area;
          largest_contour = current_contour;
      }

      current_contour = current_contour->h_next;
  }

  // return pointer to largest

  return largest_contour;

}