Error in extract foreground program,please help

Question

pratibha rane 2013-2-25

0
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https://ww2.mathworks.cn/matlabcentral/answers/64819-error-in-extract-foreground-program-please-help

Code:

video='ATMvid.avi'
if ischar(video)
    % Load the video from an avi file.
    avi = aviread(video);
    pixels = double(cat(4,avi(1:frameSkip:end).cdata))/255;
    clear avi
else
    % Compile the pixel data into a single array
    pixels = double(cat(4,video{1:frameSkip:end}))/255;
    clear video
end;
Error-??? Error using ==> double
Maximum variable size allowed by the program is exceeded.
Error in ==> extractForeground at 80
    pixels = double(cat(4,avi(1:frameSkip:end).cdata))/25;

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Walter Roberson 2013-2-25

What is size(avi) and size(avi(1).cdata) and class(avi(1).cdata) ?

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Answer 1

Image Analyst 2013-2-25

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Read it a frame at a time using VideoReader() and read(). Don't try to suck up the whole movie at once into the program. Some videos can be huge - like gigabytes and won't fit into memory. Most likely you can get by with having just a few frames in memory at one time.

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Answer 2

pratibha rane 2013-2-28

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https://ww2.mathworks.cn/matlabcentral/answers/64819-error-in-extract-foreground-program-please-help#answer_76820

I am using mixture of Gaussians algorithm for background subtraction,showing me output also, but not clearly distinguishing foreground and background, showing blurred video wherein sometime foreground and background video looks similar , what could be done to show it clearly.