help me to solve this

 I array={2,5,7,12} ; D is an Image attached
H=[];
  for i=1:4
    for j=1:10
  if(D(I(i),j)<=10)  
    H=[H,j];  %H is an array.
    end
    end

I am getting results like 2 12 5 7 5 6 7 2 12

I want something like this. I don't know to store it.

H(1):2 12

H(2):5 7

H(3):5 6 7

H(4):2 12

Answer 1

[Walter Roberson]

Replace

      H=[H,j];  %H is an array.

with

H{i}(end+1) = j;

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Thank you so much for your response.

I am getting this error

"Cell contents reference from a non-cell array object."

[Walter Roberson]

Change the

H=[];

to

H = {};

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Now it is saying

"Index exceeds matrix dimensions."

[Walter Roberson]

When it stops due to the error, please show

max(I)
class(I)
size(D)
size(H)
i
j

Question: why is it that your code

if(D(I(i))<=10)

does not depend upon j?

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Sorry.

if(D(I(i),j)<=10)

Size of D 12*12