Fix compile error: non-const lvalue reference to type 'cv::Mat' cannot bind to a temporary of type 'cv::Mat'.
Fix compile error: non-const lvalue reference to type 'cv::Mat' cannot bind to a temporary of type 'cv::Mat'.

tingjianlau/EasyPR,shushanbj/EasyPR,liuruoze/EasyPR,wangkang0627/EasyPR,simple88/EasyPR,tempbottle/EasyPR,curtainwang/EasyPR,wrestle/EasyPR,jekkro/EasyPR,Pole-he/EasyPR,liuruoze/EasyPR,DoctorQ/EasyPR,liuruoze/EasyPR,yajun0601/EasyPR,daycool/EasyPR,shushanbj/EasyPR,hesling/EasyPR,1292765944/EasyPR,BLKStone/EasyPR,daycool/EasyPR,hesling/EasyPR,tingjianlau/EasyPR,micooz/EasyPR,LinQingWei/EasyPR,nuan-nuan/EasyPR,micooz/EasyPR,Infixz/EasyPR,jekkro/EasyPR,micooz/EasyPR,jiguoling/EasyPR,lonerdai/EasyPR,spmno/EasyPR,tempbottle/EasyPR,feiyungu/EasyPR,DuongNTdev/EasyPR,feiyungu/EasyPR,wrestle/EasyPR,tingjianlau/EasyPR,Infixz/EasyPR,feiyungu/EasyPR,gdseller/EasyPR,BLKStone/EasyPR,DoctorQ/EasyPR,micooz/EasyPR,tingjianlau/EasyPR,wangkang0627/EasyPR,liuruoze/EasyPR,DuongNTdev/EasyPR,simple88/EasyPR,1292765944/EasyPR,Pole-he/EasyPR,feiyungu/EasyPR,wrestle/EasyPR,curtainwang/EasyPR,lonerdai/EasyPR,nuan-nuan/EasyPR,LinQingWei/EasyPR,yajun0601/EasyPR,wrestle/EasyPR,gdseller/EasyPR,jiguoling/EasyPR