bool OpenNI2Grabber::grabFrame(cv::OutputArray _color) { if (_color.kind() != cv::_InputArray::MAT) BOOST_THROW_EXCEPTION(GrabberException("Grabbing only into cv::Mat")); _color.create(p->color_image_resolution.height, p->color_image_resolution.width, CV_8UC3); cv::Mat color = _color.getMat(); return p->grabFrame(color); }