How to extract frames from .avi format video in matlab 7 ?

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PRABHJOT SINGH
PRABHJOT SINGH 2014-8-15
评论： Image Analyst 2014-12-6
i am facing problem in extracting frames from the AVI format video file, i tried various commands like_______ 'aviread' ,'videoreader' and mamy more......also tried from some of the M files available.....but it didnt help me......
Plz if anyone could help me on this>>>>
URGENT FOR PROJECT WORK>>>>>
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Muhamad Anas
Muhamad Anas 2014-12-6
%Turn video into frames
function [frames,Fps]=getFrames('orignal.avi')
a=videoReader('orignal.avi');
frames = read(a)
frames=read(VideoReader('orignal.avi'));
[~,~,~,N]=size(frames);
for i=1:N
frames(:,:,:,i)=(rgb2ycbcr(frames(:,:,:,i)));
end
frames=double(frames);
Fps = a.FrameRate;
end
Image Analyst
Image Analyst 2014-12-6
Muhamad, it looks like you may have some kind of question on converting RGB frames into yCbCr. Since the original poster didn't ask anything at all about that, it would be best for you to start your own new discussion.

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回答（1 个）

Image Analyst
Image Analyst 2014-8-15
编辑：Image Analyst 2014-8-15
See my attached demo.
http://matlab.wikia.com/wiki/FAQ#How_do_I_extract_frames_from_a_video_file.3F
Actually since you have an antique version of MATLAB, you probably don't have mmreader or videoReader and you'll need to use aviread() or whatever it was called. So just replace read() in my code with aviread. Post your code if you have trouble adapting. I don't think I have my old version that used that. Better yet, just upgrade to the latest version.

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