I'm using laplacian filter in opencv.
I usually use laplacian filter with kernel size 3 which is default setting in opencv.
I'm just curious what happen(intuitively) when I choose bigger size kernel?
I think if I take small size such as 3x3, this gives me 3x3 matrix. So the result is "how much change in pixel intensity in 3x3 neighbors.
However if I take bigger size such as 7x7, this gives me 7x7 matrix. So the result is "how much change in pixel intensity in 7x7 neighbors.
So, intuitively I think small kernel size gives me small local change, on the other hand big kernel size gives me broader change.
Is is right?