MY(Naveen) IDEAS : Convert-Video-to-Sequence-of-Frames

Wednesday, November 9, 2016

Convert-Video-to-Sequence-of-Frames

By studying this article, one can understand that how to read frame by frame from video using MATLAB.

Convert-Video-to-Sequence-of-Frames


% Program to read frames from a given video 

clear all; clc;
inputvideo = VideoReader('E:/videos/aa.mp4');

%informatin of video 
disp(inputvideo);

%number of frames in video 
no_of_frames = inputvideo.NumberOfFrames; 

%read and write operations frame by frame 
for i = 1 : no_of_frames
    
    frame = read(inputvideo,i);
    frame = rgb2gray(frame);
    strr = 'E:/videos/images/';
    str = int2str(i);
    filename = strcat(strr,'frame',str,'.jpg');
    imwrite(frame,filename,'BitDepth',8);
end

The output of the above code is shown below:

Summary of Multimedia Reader Object for 'aa.mp4'.

  Video Parameters:  29.93 frames per second, RGB24 1920x1080.
                     446 total video frames available.