I need to speedup saving spectrogram images
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I have 28 diseases every diseases has his own file in my computer to save the images on it..
I came with this code and its work but its it take time because my data are huge.
if ANNOTD(c)==0
spectrogram(M(LL:RR,1),'yaxis');
filename = fullfile('C:\Users\SCC\Desktop\task1\heart DB\spectrigram\NOTQRS',sprintf('NOTQRS-patient(%02d)-beat(%04d)-channel(1).jpg',patient_num,c));
exportgraphics(gca,filename);
if any one know pls help me
回答（1 个）
Bjorn Gustavsson
2021-3-13
Maybe you get some speedup by using print instead of exportgraphics. You can at least try and check that:
...as above
print('-djpg',filename) % instead of exportgraphics
Maybe other file-formats are faster to write to, perhaps you can try to save as .png-images too.
HTH
2 个评论
abdulrahman Hakami
2021-3-14
Bjorn Gustavsson
2021-3-14
Oops. It should be:
print('-djpeg',filename)
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