out of Memory ,when reading a video of 22 seconds

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Gova ReDDy
Gova ReDDy 2011-11-20
Hi..Im extracting frames from a video. Previously I extracted frames from a 5 seconds video clip and when Im trying to extract from a 22 seconds video clip using * aviread* it is showing error as *out of memory *.
How to solve this problem?
  2 个评论
Jan
Jan 2011-11-20
Well, do the data of 22 sec match into the available RAM? Is it really necessary to keep all these frames at the same time in the memory?
Gova ReDDy
Gova ReDDy 2011-11-20
only one frame is saved at a time using a loop as shown below
folder = fullfile('D:\videofiles\framesNEW');
movieFullFileName = fullfile(folder, 'video.avi');
movieInfo = aviinfo(movieFullFileName);
mov = aviread(movieFullFileName);
numberOfFrames = size(mov, 2);
[folder, baseFileName, extentions] = fileparts(movieFullFileName);
folder = pwd;
outputFolder = sprintf('%s/Frames%s', folder, baseFileName);
mkdir(outputFolder);
for frame =1:numberOfFrames
here I'm extracting each frame and saving it
end;

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回答（1 个）

Image Analyst
Image Analyst 2011-11-20
Use the VideoReader class and the read() function to pull out just one frame at a time rather than a call to aviread() to suck up the whole thing at once, which you apparently cannot do due to memory limitations. I'm not sure what version VideoReader was introduced in but I have it in R2011a.

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