Save frames while creating a video

I'm doing a video from a data array (ArrayVelocity). The data is composed the next way: files with Columns and rows (representing X and Y direction from the 2D image) and each file means an isntant of time.

The code goes as follows:

for i=1:size(ArrayVelocity,3) %Checks the lenght of the time vector

    [x_1_range, x_2_range, matrixVmag]  = buildMatrix(meanArray(:,1), meanArray(:,2), ArrayVelocity(:,colVmag,i));  %Brings the information from the array
     
    txtTitle = "";
    plotContour(time(i), x, y, matrixVmag, txtTitle); %Function to plot the data 
    
    %Creates the video 
    frame = getframe(gcf);
    writeVideo(v,frame);
    close

end

I want to get the image of each instant of time (or frame) and save them in a folder.

I'm stuck with that alrerady some time. I would appreciate your help!

Thanks :)

[Geoff Hayes]

Is the problem with creating the video or do you want to also save each frame to file? Does the above code work so that a video is created correctly?

[U A]

The code above does and saves the video correctly...I also want to save each frame separately.

[Geoff Hayes]

From the frame structure, you can probably just use the cdata field to write to file as an image using imwrite so long as you know how to name the frame and where you want to write the file to.

Answer 1

[U A]

I solved the problem by adding two simple lines:

fname = 'R:\Frames\'; %Direction of where is going to be saved the each frame 
saveas(gcf, fullfile(fname,['Frame' num2str(i).png'])) %saves frame with file name

Thanks :)