MATLAB: Getting lossless images from mjpeg

MATLAB Compilervideo processing

I am learning with video to image conversion and vice versa.

I had a mjpeg of 3 sec, when i converted to jpeg images i got 55 images.

then i used all 55 images to make a mjpeg video but the video is not of 3 sec anymore

Please tell me correct way of video to image conversion and vice versa. i am not getting where i am going wrong.

Best Answer

hello iqra,

i am very sorry for not replying so long.

i cleared my issue after refering to this link below

https://in.mathworks.com/help/matlab/examples/convert-between-image-sequences-and-video.html

go through this

hope it helps

Related Solutions

MATLAB: I keep trying to convert a video grayscale but it gives me an error

Instead of rgb2gray(), use read() and pass it the frame number. Should look something like this:

% Loop through the movie, writing all frames out.
for frame = 1 : numberOfFrames
	% Extract the frame from the movie structure.
	thisInputFrame = read(inputVideoReaderObject, frame);
	
	% Display it
	image(thisInputFrame);
        if ndims(thisInputFrame) == 3
            thisInputFrame = rgb2gray(thisInputFrame);
        end
	axis on;
	axis image;
	caption = sprintf('Frame %4d of %d.', frame, numberOfFrames);
	title(caption, 'FontSize', fontSize);
	drawnow; % Force it to refresh the window.
	
	% Resize the image.
	outputFrame = imresize(thisInputFrame, [outputVideoRows, outputVideoColumns]);
	
	% Write this new, resized frame out to the new video file.
	writeVideo(outputVideoWriterObject, outputFrame);
	
	% Update user with the progress.  Display in the command window.
	progressIndication = sprintf('Processed frame %4d of %d.', frame, numberOfFrames);
	disp(progressIndication);
	% Increment frame count (should eventually = numberOfFrames
	% unless an error happens).
	numberOfFramesWritten = numberOfFramesWritten + 1;
end

Best Answer

Related Solutions

MATLAB: I keep trying to convert a video grayscale but it gives me an error

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