convert frames to video

ImagesFolder=uigetdir;

jpegFiles = dir(strcat(ImagesFolder,'\*.jpg'));

S = [jpegFiles(:).datenum];

[S,S] = sort(S);

jpegFilesS = jpegFiles(S);

% create a video file object called MyVideo

VideoFile=strcat(ImagesFolder,'\MyVideo');

writerObj = VideoWriter(VideoFile);

%Define the video frames per second

fps= 10;

writerObj.FrameRate = fps;

%Open file for writing video data

open(writerObj);

%convert them to movie frames using im2frame and writing the video data to file using writeVideo

for t= 1:length(jpegFilesS)

    Frame=imread(strcat(ImagesFolder,'\',jpegFilesS(t).name));

    writeVideo(writerObj,im2frame(Frame));

end

close(writerObj);

Convert Video to frames in matlab

The videoReader takes the input video. It creates a folder called snaps. If the directory is not there, it creates using mkdir
The frames are read now and stored in Frame. Later the file is taken and written into the output folder. The frame is then incremented.


clc;
close all;
clear all;
filename = 'rhinos.avi';
mov = VideoReader(filename);
opFolder = fullfile(cd, 'snaps');
if ~exist(opFolder, 'dir')
      mkdir(opFolder);
end
numFrames = mov.NumberOfFrames;
numFramesWritten = 0;
for t = 1 : numFrames
    Frame = read(mov, t);
    opBaseFileName = sprintf('%3.3d.png', t);
     opFullFileName = fullfile(opFolder, opBaseFileName);
     imwrite(Frame, opFullFileName, 'png');
     Indicate = sprintf('Wrote frame %4d of %d.', t, numFrames);
     disp(Indicate);
     numFramesWritten = numFramesWritten + 1;
end
Indicate = sprintf('Wrote %d frames to folder "%s"',numFramesWritten, opFolder);
disp(Indicate);