# getTrackerNmsIouThreshold method

int getTrackerNmsIouThreshold()

Gets the non-maximum suppression (NMS) intersection-over-union (IOU) threshold, in the range (0;100). Hint: Default value is 0. Setting a high threshold allows to detect more overlapping faces which can be useful in a multi-face scenario. On the contrary, in a portrait scenario, a low NMS IOU threshold should be preferred.

return Non-maximum suppression (NMS) intersection-over-union (IOU) threshold, in the range (0;100). throws FaceException An error has occurred during Face Library execution.

## Implementation

    int getTrackerNmsIouThreshold() {
      Pointer<Int> pTrackerNmsIouThreshold = calloc();
      try {
        var err = faceSDK.id3FacePortraitProcessor_GetTrackerNmsIouThreshold(_pHandle.value, pTrackerNmsIouThreshold);
        if (err != FaceError.success.value) {
          throw FaceException(err);
        }
        final vTrackerNmsIouThreshold = pTrackerNmsIouThreshold.value;
        return vTrackerNmsIouThreshold;
      } finally {
        calloc.free(pTrackerNmsIouThreshold);
      }
    }