How to display an image contained in a file?

[Marcin Borkowski]

Hi all,

I have an image in the file, say "~/image.png".  I want to display it in
an interactive function - say, the user says M-x display-my-image, and
I want a buffer containing the image to pop up.  What do I do?  Of
course, (find-file "~/image.png") works, but it's probably not what
I should do in an Elisp program, right?

TIA,

-- 
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University