Do you think I can reverse the process for reshape and build a video file again?

I am compeletly new to programming and MATLAB.I working on a project which is kind of compulsary.But now I am stuck at one place and don'tknow how to solve.

The main code I am using is

clc; clear; close all;
% Set the video information
videoSequence = 'bus_cif.yuv';
width  = 352;
height = 288;
nFrame = 150;
secimage = 'Data/secret.png';         % Secret image path
x = 0.1;
% Read the video sequence
[Y,U,V] = yuvRead(videoSequence, width, height ,nFrame);
%% Frame by Frame Embedding
display('Begin Embedding...')
tic
secret = imread(secimage);
% convert image into binary (0.1 is a predetermined threshold...)
S = im2bw(secret,0.1);
[wmh,wmw] = size(S);
yImage1 = uint8(zeros(height,   width,   nFrame));
uImage1 = uint8(zeros(height/2, width/2, nFrame));
vImage1 = uint8(zeros(height/2, width/2, nFrame));

   % Y component of the frame
   

for iFrame = 1:nFrame
    yImage1(:,:,iFrame) = dwt_embedd(Y(:,:,iFrame),S,x);
    uImage1(:,:,iFrame)=U(:,:,iFrame);
    vImage1(:,:,iFrame)=V(:,:,iFrame);
end
%wMark(1:nFrame) = struct('cdata',zeros(wmh,wmw,1,'uint8'),'colormap',[]);
%for iFrame = 1:nFrame
%    wMark(iFrame).cdata = dwt_extract(Y_out(:,:,iFrame),Y(:,:,iFrame),x,[wmh wmw]);
%end


% PSNR
% Only the Y frame of the YUV image is considered. Specific method is not
% defined on the paper. Using the provided algorithm..

I want write all the three components back to 'yuv' video file.

The function, I used to read the YUV components is

function [y, u, v] = yuvRead(vid, width, height, nFrame)

fid = fopen(vid,'r');           % Open the video file
stream = fread(fid,'*uchar');    % Read the video file
length = 1.5 * width * height;  % Length of a single frame

y = uint8(zeros(height,   width,   nFrame));
u = uint8(zeros(height/2, width/2, nFrame));
v = uint8(zeros(height/2, width/2, nFrame));

for iFrame = 1:nFrame
    
    frame = stream((iFrame-1)*length+1:iFrame*length);
    
    % Y component of the frame
    yImage = reshape(frame(1:width*height), width, height)';
    % U component of the frame
    uImage = reshape(frame(width*height+1:1.25*width*height), width/2, height/2)';
    % V component of the frame
    vImage = reshape(frame(1.25*width*height+1:1.5*width*height), width/2, height/2)';
    
    y(:,:,iFrame) = uint8(yImage);
    u(:,:,iFrame) = uint8(uImage);
    v(:,:,iFrame) = uint8(vImage);

end

Do you think I can reverse the loop and make video file again??