public static int getFaceCount(String imgSrc) {
   Photo photo = null;
   try {
     photo = faceClient.detect(imgSrc).get(0);
   } catch (FaceClientException e) {
     e.printStackTrace();
   } catch (FaceServerException e) {
     e.printStackTrace();
   }
   if (photo != null && photo.getFaces() != null) {
     return photo.getFaces().size();
   } else {
     return 0;
   }
 }
 public static List<Face> getFaces(String imgSrc) {
   Photo photo = null;
   try {
     photo = faceClient.detect(imgSrc).get(0);
   } catch (FaceClientException e) {
     e.printStackTrace();
   } catch (FaceServerException e) {
     e.printStackTrace();
   }
   if (photo != null) {
     return photo.getFaces();
   } else {
     return null;
   }
 }