saving figures in matlab

Question

MINA 2016-5-23

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https://ww2.mathworks.cn/matlabcentral/answers/285548-saving-figures-in-matlab

回答： Richard Quist 2016-5-24

Hello.

I am generating bunch of figures in matlab which is in a for loop. I would like to save them both in .fig and .jpg. Right now I am first plotting the figure and then save them. But I don't really need to see the figures and I just want to save them. Is there anyway that I do this so that the speed increases?

Thanks

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Answer 1

Richard Quist 2016-5-24

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https://ww2.mathworks.cn/matlabcentral/answers/285548-saving-figures-in-matlab#answer_223295

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You can try using an invisible figure:

% create an invisible figure
f = figure('visible', 'off'); 
% loop 10 times, saving .fig and .jpeg for a random plt
for idx = 1:10
    % plot your data 
    plot(rand(10)); 
    % save as .fig 
    savefig(f, sprintf('figure%d.fig', idx)); 
    % save as jpeg
    print(f, '-djpeg', sprintf('figure%d.jpg', idx));
    % clear the figure 
    clf(f); 
end
delete(f);