Where is the command "IDISP" and "ABOUT" in Matlab 2019?

I am seeing a tutorial where it is used the command:

im = imread('image.png');

about im

idisp(im)

But these commands do not work on my Matlab version. How can I replace them?

I am trying to access the pixels of an image and then capture the bits.

[David Ukwen]

for that command to work, you have to install a machine vision toolbox. you can refer to this link to understand what it is and how to install it.

https://petercorke.com/toolboxes/machine-vision-toolbox/