matlab - reading and displaying video file frame by frame -

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I am recently working with Matlab I want to read a video file and calculate something in every frame And display every frame. I wrote the following code, but every time it shows only the first frame, nobody can help. 

  mov = VideoReader ('c: \ vid \ Akiyo.mp4'); NFrames = mov.NumberOfFrames; I = 1 for: nFrames videoFrame = reading (mov, i); Imshow (videoFrame); << Code>   
 
 
 
 Note:  mmreader  has been API Closed by MATLAB, it likes to use the  VideoReader .     
 View comment by @Vivek.  
 I usually do this:  
  obj = mmreader ('c: \ vid \ Akiyo .mp4'); NFrames = obj.NumberOfFrames; K = 1: nFrames for img = read (obj, k); Figure (1), imshow (img, []); End   
 As far as your code is concerned, I saw the documentation of MATLAB. You should work in the following order:  
  mov = VideoReader ('c: \ vid \ Akiyo.mp4'); Read vidFrames = (MOV); NFrames = mov.NumberOfFrames; I = 1 for: nFrames imshow (vidFrames (:,:, i), []); % Frames are grayscale end

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