## im uploading two codes which have different outputs. Wats the difference between these two pieces of code. I mean , why there outputs are different . Shudn't outputs be same ?

### Amir (view profile)

on 26 Feb 2015
Latest activity Commented on by sandhya

### sandhya (view profile)

on 26 Feb 2015
if true
% code
block=20*ones(200);
block1=60*ones(500);
block2=100*ones(500);
block3=150*ones(500);
block1(151:350,151:350)=block;
img1=uint8(block1);
subplot(2,3,1)
imshow(img1)
block2(151:350,151:350)=block;
img2=uint8(block2);
subplot(2,3,2)
imshow(img2)
block3(151:350,151:350)=block;
img3=uint8(block3);
subplot(2,3,3)
imshow(img3)
end
if true
% code
A=60*ones(500);
B=120*ones(500);
C=200*ones(500);
A(151:350,151:350)=20*ones(200);
subplot(2,3,1)
imshow(uint8(A))
B(151:350,151:350)=20*ones(200)
subplot(2,3,2)
imshow(uint8(A))
C(151:350,151:350)=20*ones(200)
subplot(2,3,3)
imshow(uint8(A))
end

### Guillaume (view profile)

on 26 Feb 2015

Well, in your second piece of code, you're showing A three times. If you show A, B and C you get the same figure as in the first piece:
figure;
subplot(2,3,1);
imshow(uint8(A));
subplot(2,3,2);
imshow(uint8(B));
subplot(2,3,3);
imshow(uint8(C));

### sandhya (view profile)

on 26 Feb 2015
Edited by sandhya

### sandhya (view profile)

on 26 Feb 2015

Rather your second code should be
if true
% code
A=60*ones(500);
B=120*ones(500);
C=200*ones(500);
A(151:350,151:350)=20*ones(200);
subplot(2,3,1)
imshow(uint8(A))
B(151:350,151:350)=20*ones(200)
subplot(2,3,2)
imshow(uint8(B))
C(151:350,151:350)=20*ones(200)
subplot(2,3,3)
imshow(uint8(C))
end

Guillaume

### Guillaume (view profile)

on 26 Feb 2015
Please use the formatting tools that this forum offers to you. In particular, the {} Code button.
Amir

### Amir (view profile)

on 26 Feb 2015
Thanks to both of u for pointing out the mistake.
sandhya

### sandhya (view profile)

on 26 Feb 2015
kindly vote for my answer if it really helped you... thankyou