Can someone please explain in details the last two sections in the following code

I need some to explain the last two sections in the code. Extremely necessary https://www.mathworks.com/matlabcentral/fileexchange/46318-example-files-for--image-processing-made-easy--webinar?focused=6798273&tab=function

[Walter Roberson]

Starting where? And which parts are you having questions about? It helps a lot if your questions are more specific, since "explain the last two sections" could require writing a couple of books on computer programming and image processing since we do not know what your level of current understanding is.

[Nasser Jarrar]

I need to know what every line does in the last two sections

[Walter Roberson]

Sorry, that isn't going to happen. None of us has time to write two books for you. Read the Getting Started Guide, and the documentation for the individual commands, and get back to us with specific questions.