Read specific frames from a video

I want to read some specific frames from a video.Following is my code

videoData=VideoReader(absPath);
i=1;
while hasFrame(videoData)
   img = readFrame(videoData);
   filename = [sprintf('%03d',i) '.jpg'];
   fullname = fullfile(savePath,filename);
   imwrite(img,fullname)    % Write out to a JPEG file (img1.jpg, img2.jpg, etc.)
   i = i+1;

end

Issue is that I have seen on sites that "read" method got used but it is NOT available in Matlab 2015.Is there some way? Please also tell me what would I need to do if I need to extract frames after a particular time delay?

regards

Answer 1

[Geoff Hayes]

Nasser - try using read instead which was introduced in R2010b (and is to be replaced by readFrame).

[Naseer Khan]

readFrame does not have options like frame number or read frame after some time?

[Geoff Hayes]

Nasser - I don't understand. Do you have the function readFrame or not?

Answer 2

[Tuan Nguyen]

For example if i want to read frame 10 to 20:

arr=10:20; i=1; while hasFrame(videoData) if(i>max(arr)) break; img = readFrame(videoData); if (any(i==arr) filename = [sprintf('%03d',i) '.jpg']; fullname = fullfile(savePath,filename); imwrite(img,fullname)

   i = i+1;
end