How can you extract odd and even rows and columns from image to seperate image outputs

Hi there. I might be overthinking this. I often do but I'm trying to take the odd columns and rows and then even rows and columns from an image and then output them to form two seperate images in a subplot, with the original image maintained. I am confused at how I handle the additional dimension and I think this might be causing the output to fail. Any advice would be much appreciated. Code below.

%Load image
function [RowsEven, ColsEven]=oddevenpic(A); 
A=imread('brain.jpg');
sizeofarray=size(A);
B=zeros(sizeofarray(1), sizeofarray(2));
C=zeros(sizeofarray(1), sizeofarray(2));
image(B);
image(C);
 for r=1:sizeofarray(1);
    for c=1:sizeofarray(2);
     for RowsEven=mod(A,r)==0;
        for ColsEven=mod(A,c)==0;      
     if (A(r)==RowsEven) | (A(c)==ColsEven);
        (B(r)==RowsEven) & (B(c)==ColsEven);
     else
        (C(r)==(A(r)~=RowsEven)) & (C(c)==(A(c)~=ColsEven));
     end
        end
     end
     end
end


% %Display
subplot(3,2,3);
imshow(A);
title('Original Image')
% 
subplot(3,2,2);
imshow(B);
title('Even Pixels Only')
% 
subplot(3,2,1);
imshow(C)
title('Odd Pixels Only')
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0, 0, 1, 1]);

Answer 1

[JESUS DAVID ARIZA ROYETH]

B=A(2:2:size(A,1),2:2:size(A,2),:);%Even Pixels Only
C=A(1:2:size(A,1),1:2:size(A,2),:);%Odd Pixels Only

[Saphsa Codling]

Oh my goodness! Thank you so much. That has worked! Thank you. For Loop was unnecessary and killing me. Thanks again. :-)

[NIKHIL SINGH]

can u share the final code which gave the output after making changes

[Saphsa Codling]

Sure Nikhil

%A script to load an image, export all odd columns and rows to output B,
%and all even columns and rows to output C. 

%Load image
A=imread('brain.jpg');
%obtain odd and even columns and rows from image A and output to images B
%and C
B=A(2:2:size(A,1),2:2:size(A,2),:);%Even Columns and Rows Only
C=A(1:2:size(A,1),1:2:size(A,2),:);%Odd Rows and Columns Only

% Display subplot 1, all in colour
figure
s(1)=subplot (2,1,1);
imshow(A);
title('(A) Original Image')
% 
s(1)=subplot (2,2,3);
imshow(B);
title('(B) Even Columns and Rows Only')
% % 
s(1)=subplot (2,2,4);
imshow(C)
title('(C) Odd Columns and Rows only')

%maximise size in subplot 1
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0, 0, 1, 1]);