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%%Extracting & Saving of frames from a Video file through Matlab Code%%
clc;
close all;
clear all;
% assigning the name of sample avi file to a variable
filename = './Kolkata_Zoo/Kol (19).mp4';
outfile = 'Kol19_imgs'
%reading a video file
mov = VideoReader(filename);
% Defining Output folder as 'snaps'
opFolder = fullfile(cd, outfile);
%if not existing
if ~exist(opFolder, 'dir')
%make directory & execute as indicated in opfolder variable
mkdir(opFolder);
end
%getting no of frames
numFrames = mov.NumberOfFrames;
%setting current status of number of frames written to zero
numFramesWritten = 0;
%for loop to traverse & process from frame '1' to 'last' frames
for t = 1 : numFrames
currFrame = read(mov, t); %reading individual frames
opBaseFileName = sprintf('%3.3d.png', t);
opFullFileName = fullfile(opFolder, opBaseFileName);
imwrite(currFrame, opFullFileName, 'png'); %saving as 'png' file
%indicating the current progress of the file/frame written
progIndication = sprintf('Wrote frame %4d of %d.', t, numFrames);
disp(progIndication);
numFramesWritten = numFramesWritten + 1;
end %end of 'for' loop
progIndication = sprintf('Wrote %d frames to folder "%s"',numFramesWritten, opFolder);
disp(progIndication);
%End of the code
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