What do u mean by grid size in image processing

I need to know what is grid size in matlab.if we are using a 3 by 3 mask for processing ,is the grid size value equal to 9?

Also how to choose the number of dimensions in Additive Operator Spliting(AOS Scheme)?

[Anand]

Can you clarify the question. What function are you talking about? In what context is grid size being used?

[ROHIT]

function f=gaussian2d(N,sigma)

% N is grid size, sigma speaks for itself
here what is grid size.

Answer 1

[Image Analyst]

You'd have to ask the person who used the term "grid size" since it's not a well defined term and could vary depending on who said it, and in what context.