Index exceeds matrix dimensions.

for j=1:96 %Display the 3color channel
      for k=1:96
            mR=re(j,k,1);
            mG=re(j,k,2);
            mB=re(j,k,3);

       d=[mR mG mB];
       disp('d value is');  
       disp(d);

Answer 1

[KSSV]

[m,n,p] = size(re) ;  
for j=1:m %Display the 3color channel
        for k=1:n
              mR=re(j,k,1);
              mG=re(j,k,2);
              mB=re(j,k,3);
         d=[mR mG mB];
         disp('d value is');  
         disp(d);
  end
  end

[vasantha malairamar]

Thank u for your ans....it works.

[KSSV]

Please note that earlier your loops had values till 96, the size of matrix Re was less then 96, so error popped out. In the above code, we are calculating the dimensions [m,n] and running the loop.

[vasantha malairamar]

how to divide an image of 768*768 into blocks of 96*96.

[KSSV]

Read about reshape.

[vasantha malairamar]

how to divide rgb image into blocks using for loop..

[KSSV]

Give dimensions..

[vasantha malairamar]

768*768 image divided into 8*8 block