Input argument undefined - MATLAB function/subfunction

Question

I am testing a part of a function for my work in MATLAB. I have defined a function and subfunction as follows(just for testing):

function funct
clear all;
clc;
I         


        

Answer 1

I don't have the image processing toolbox, so I can't check this myself, but it looks like nlfilter expects a function of just one argument. Try changing the call to nlfilter like this:

A = nlfilter(I, [7 7], @(x) dirvar(x,ld));