How to write video in to frames

Hi every one

I have implement some algorithm now i want to save the results of this algorithm into some folder how can I do it?

let say my result is

myvideo=result; writeobj=Videowriter(myvideo);

how to do ahead.

thanks

[Walter Roberson]

You want to save the individual frames? Or you want to save as a video? What is the arrangement of data in "result" ?

[Algorithms Analyst]

result is a binary image.I mean frames...

I want to save individual frames of result.

Thanks

[Walter Roberson]

So result is H x W x number_of_frames ?

[Algorithms Analyst]

no......

let say that I have a video

clc

close all

clear all

%%Declaring Background,current and equivalent grayscale frames

source='campus.avi';

vidobj=VideoReader(source);

frames=vidobj.Numberofframes;

for f=1:frames

thisframe=read(vidobj,f);

figure(1);imagesc(thisframe);title('Input Video Sequence');

level=graythresh(thisframe);

bwimg=im2bw(thisframe,level);

figure(2);imagesc(bwimg)

%%%Now here I want to save individual frame of my result bwimg....

end

Answer 1

[Walter Roberson]

http://www.mathworks.com/help/matlab/ref/videoreaderclass.html

shows an example of reading a video to extract the frames. Beyond that you would use imwrite() to save each frame to a file.

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

[Walter Roberson]

for K = 1 : size(result,3)
  thisframe = result(:,:,K);
  thisfile = sprintf('frame_%04d.jpg', K);
  imwrite( thisframe, thisfile );
end

[Walter Roberson]

Taking into account your code:

thisfile = sprintf('frame_%04d.jpg', f);
imwrite(bwimg, thisfile);

[Algorithms Analyst]

Where these frames will be saved as I did it like that...but i m not sure where are they saving

clc

close all

clear all

source='Intellegent.avi';

vidobj=VideoReader(source);

frames=vidobj.Numberofframes;

for f=1:frames

    thisframe=read(vidobj,f);

    figure(1);imagesc(thisframe);

    for K=1:size(thisframe,3)

        itframe=thisframe(:,:,K);

    thisfile = sprintf('frame_%04d.jpg', K);

imwrite( thisframe, thisfile );

    end

end