MATLAB: How to save an image using imwrite with a filename from a variable

image processingvideo

I am saving a frame from a video as an image. Both the image and video should have the same name. How can I save an image with a file name from a variable? The filenames are stored in the variable videos.name
    videos = dir('*.avi');
for i = 1:size(videos)
    [pathstr,name,ext] = fileparts(videos(i).name) 
    V = VideoReader(videos(i).name);
    oneframe = readFrame(V);
    imshow(oneframe)
    imwrite(oneframe, name, '.jpg')
end
Thank you very much!

Best Answer

Hi Nalini,
You can combine string values using square brackets. The syntax for imwrite using your variable names is as follows:
imwrite(oneframe, [name, '.jpg']);
Check your workspace to ensure name is the intended file name without a file extension.
Hope this helps
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