Program doesn't always start.

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Douglas Brenner 2016-9-16

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https://ww2.mathworks.cn/matlabcentral/answers/303355-program-doesn-t-always-start

评论： Stephen23 2016-9-17

My program doesn't always run. I access my license through a VPN. Could that have something to do it with? Here's the code.

 clear
include
for i = 3:3%1:nimages; 
   aviin = [transformeddir,base_name,'_transformed_', int2str(i),'.avi'];
     disp('Converting')
    disp(aviin)
    a = VideoReader(aviin)
    n_frames =  a.NumberOfFrames;
    frame=read(a,1);
    Sum=double(frame);
    for j = 2:n_frames; 
     frame = double(read(a,j));
     Sum =  Sum  + frame;
    end
    Mean = Sum / n_frames;
    figure(1), imshow(uint8(Mean));
    [Gmag, Gdir] = imgradient(Mean,'prewitt');
    rgbmag = ind2rgb(uint8(3*Gmag), flipud(jet(256)));
    rgbdir = ind2rgb(uint8(Gdir), hsv(256));
    figure(2);
    imshow(rgbmag);
    figure(3);
    imshow(rgbdir);
end

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Stephen23 2016-9-17

"My program doesn't always run"

So what does it do? Does MATLAB print an error message or a warning, crash, go into an endless loop, quit without warning, show an incorrect output, or does your computer explode into flames?

Each of these can have different causes, so when you actually tell us exactly what is happening then we can actually help you. Until then you make us guess what "doesn't always run" means: I will interpret it to mean that your computer is tired and wants to go on holiday. The solution is thus to give it a massage and book it a week in the Bahamas.

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