Image hiding inside an image

Hello, I am trying to hide an image inside an image taking one row of the secret image at a time.

input = imread('peppers.png');% cover image
 I1=imread('message1.png');%%% secret image grayscale 64*64 

% Convert image to grayscale
input=rgb2gray(input);
 % Resize the image to required size
input=imresize(input, [512 512]);
 message=I1(1,:);

len = length(message) * 8;

 bin_message1=de2bi(message,'left-msb',8);
% Get all the binary digits in separate row
bin_message = bin_message1(:);
 
% Length of the binary message
N = length(bin_message);
  
% Initialize output as input
output1 = input;
height = size(input, 1);
width = size(input, 2);
 
embed_counter = 1;

for i = 1 : height
    for j = 1 : width
         
        if(embed_counter <= len)
             
            LSB = mod(double(input(i, j)), 2);
             
           temp = double(xor(LSB, bin_message(embed_counter)));
                
            output1(i, j) = input(i, j)+temp;
                       
            embed_counter = embed_counter+1;
        end
         
    end
end


%%%%%%%%%%%% 2nd row of I1 to hide
 message2=I1(2,:);
 len = length(message2) * 8;
 bin_message2=de2bi(message2,'left-msb',8);
 bin_message = bin_message2(:);

N2 = length(bin_message);
% Initialize output as input
output2 = output1;

height = size(output1, 1);
width = size(output1, 2);
 
% Counter for number of embedded bits
embed_counter = 1;
and ...............
    ..............

this way I have tried to embed all 64 rows of the secret image. I want to apply a loop so that it can be done once. Can anyone help

Answer 1

[GandaBerunda]

Hi Lilly,

One suggestion which comes on the top of my head is that you can put the steganography part of the code as a separate function. Then you can iterate through the rows of the secret image and call that function. Hope it helps.

[lilly lord]

Thank you very much. Your answer help me to solve this problem. I made the function and solve the issue