python 循环调用matlab

%1 start matlab process
eng = matlab.engine.connect_matlab()
% eng = matlab.engine.start_matlab() %之前用的这种方式运行时间长会报错 不知道为啥
%get the process name
 names = matlab.engine.find_matlab()
 print('matlab process name: ',names)
 
% 2 excute operation
for i=1:n
scores +=  eng.calc_NIQE(save_img_path,4)
end

% 3 exit process
eng.quit()