can you help to know how to find the energy of the image?..i want to know how to implement the below equation .?where G(x,y) is the image function

[Image Analyst]

What do m and n represent? Why the || around G? Is it complex or does it have negative values?

Answer 1

[Walter Roberson]

maxval = -inf;
for m = 1 : whatever
  for n = 1 : whatever
    thisval = G(m,n,x,y);
    if thisval > maxval; maxval = thisval; end
  end
end