MATLAB: How can we display each pixel Intensity value of a gray image through loop ……for example to show the output like this….”

pixel intensity value

intensity value of pixel(1,1)=87

intensity value of pixel(1,2)=127

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[C, R] = ndgrid(1:size(YourArray,1), 1:size(YourArray,2));
fprintf('intensity value of pixel(%3d,%3d)=%3d\n', [R(:), C(:), YourArray(:)].' );

If you have more than 999 rows or columns then increase the %3d,%3d to suitable width.

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MATLAB: What will be the short and efficient code for the this task…kindly help me i am new to matlab

>> I = randi(9,5) %  fake data (use your data matrix)
I =
   2   8   5   4   5
   7   6   5   8   8
   9   1   9   6   8
   6   2   9   8   8
   2   3   4   1   3
>> [C,R] = meshgrid(1:5);
>> fprintf('Intensity value at pixel(%d,%d) = %d\n',[R(:),C(:),I(:)].')
Intensity value at pixel(1,1) = 2
Intensity value at pixel(2,1) = 7
Intensity value at pixel(3,1) = 9
Intensity value at pixel(4,1) = 6
Intensity value at pixel(5,1) = 2
Intensity value at pixel(1,2) = 8
Intensity value at pixel(2,2) = 6
Intensity value at pixel(3,2) = 1
Intensity value at pixel(4,2) = 2
Intensity value at pixel(5,2) = 3
Intensity value at pixel(1,3) = 5
Intensity value at pixel(2,3) = 5
Intensity value at pixel(3,3) = 9
Intensity value at pixel(4,3) = 9
Intensity value at pixel(5,3) = 4
Intensity value at pixel(1,4) = 4
Intensity value at pixel(2,4) = 8
Intensity value at pixel(3,4) = 6
Intensity value at pixel(4,4) = 8
Intensity value at pixel(5,4) = 1
Intensity value at pixel(1,5) = 5
Intensity value at pixel(2,5) = 8
Intensity value at pixel(3,5) = 8
Intensity value at pixel(4,5) = 8
Intensity value at pixel(5,5) = 3

MATLAB: Regarding Matrix row subtraction! Please Help, Urgent

Works for me.

A=[6 5 6;2 4 1];
A(2,2)-A(1,2) 
ans =
    -1

I would suggest that A is probably of class uint8. (Or a similar integer class.) Verify that by whos.

whos A
  Name      Size            Bytes  Class     Attributes
  A         2x3                48  double

You can see that A is a double. See what happens if we change the class of A. It still looks very much the same, but...

A = uint8(A)
A =
  2×3 uint8 matrix
   6   5   6
   2   4   1
A(2,2)-A(1,2)
ans =
  uint8
   0

Now we get zero.

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MATLAB: What will be the short and efficient code for the this task…kindly help me i am new to matlab

MATLAB: Regarding Matrix row subtraction! Please Help, Urgent

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