erosion / dilation help for newbies

Hello,

Can you help me on erosion / dilation for image editing (witout using imerode, imclose, bwmorph etc functions )?

[Walter Roberson]

Saying "I try to solve that second homework but i couldn't make it" is not very informative. What happened when you tried?

[Walter Roberson]

You are not required to use existing MATLAB functions.

I am not sure: is it Part 1 point 2 that you are working on, or Part 2 ?

[Image Analyst]

Have you ever even programmed before?

[Image Analyst]

Despite your edit today, my answer below, from before, is still what I would say.

Answer 1

[Image Analyst]

Erosion is a local min. Dilation is a local max. You can use blockproc() or a set of 4 nested for loops to do the same thing. Why do you not want to use the built-in functions?