CODEWITHSUNDEEP
matlabtiffavimovie
Beth
Beth

Reputation: 181

Making avi movie from tiff stack in MATLAB using getframe()

I am writing a simple code to convert a tiff stack to a .avi movie. Here is my current code

TiffName='Un102319_1466ul_min_3.tif';
filename='movieTest';

for i=1:numel(imfinfo(TiffName))
    imshow(imread(TiffName,i))
    mov(i)=getframe(gca);

end

movie2avi(mov, filename);

The imshow() works fine, but the movie shows only the toolbar above the image. It seems that getframe isn't doing what I thought it was supposed to do.

Upvotes: 2

Views: 1979

Answers (2)

rayryeng
rayryeng

Reputation: 104484

The code you wrote works for me. My suspicion is your getframe call is wrong. Simply call it without gca. You want the current figure, not the current axes.

As such:

TiffName = 'Un102319_1466ul_min_3.tif';
filename='movieTest';

in = imfinfo(TiffName);
for k = 1 : numel(in)
    imshow(imread(TiffName, k));
    mov(k) = getframe; %// Change here
end

movie2avi(mov, filename);

This will give you what you want, but movie2avi doesn't offer a lot of choices in terms of compression algorithms. As such, I would recommend you go with the VideoWriter approach and take a look at Benoit_11's answer.

Good luck!

Upvotes: 1

Benoit_11
Benoit_11

Reputation: 13945

Maybe use a videowriter object:

mov((1:nFrames) = struct('cdata', [], 'colormap',[]);

YourVideo = VideoWriter('MovieName.avi'); % you can add compression options also
YourVideo.FrameRate = 15; % Select frame rate

open(YourVideo);

for k = 1:nFrames

mov(k).cdata = getframe(gca);
writeVideo(YourVideo,mov(k).cdata);

end

close(YourVideo);

Upvotes: 1

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