Indexing cannot yield multiple results.

Hello, so I have this code, for a 3x3 rgb image:

[nRows, nCols, nCh] = size(image);
%I have 100 3x3 squares of the image:
p = zeros(3,3,3)
P = cell(100,1);
k = 0;
for i=1:3:nRows
for j=1:3:nCols
   k = k+1;
   p = image(i:i+2, j:j+2, :);
   P{k} = p;
   if k>=100 
       break;
   end
end
end

%average for the 67th square:
p = P{67};
m(67) = [sum(sum(p(:,:,1))/9), sum(sum(p(:,:,2))/9), sum(sum(p(:,:,3))/9)];

And at the first row [nRows, nCols, nCh] = size(image) I get the Indexing error. Any ideas? Thank you

Answer 1

[Azzi Abdelmalek]

Check if size was not used as a variable. For example

size=2
[n,m]=size(rand(4))

To resolve the problem type

clear size
[n,m]=size(rand(4))

[Cezarina Croitoru]

it's not used at all, only in that line

[Azzi Abdelmalek]

In Matlab Windows Command, type

which size