How do I write a function to copy an image on top of another?

For class I have to write code to crop myself and a friend into four different pictures of places around the world. I'm new and have no idea how to do this and was wondering if someone could help get me started with how to copy myself onto a background.

A = imread('penguins.jpg'); %Background of penguins on a glacier B = imread('Aidan.jpg'); %My friend Aidan jumping

C = imfuse(A,B); imshow(C);

I tried imfuse but found out it is not the way I need to go. If anyone can help it would be much appreciated!

Answer 1

[Image Analyst]

See my demo file (attached below in blue) to copy and paste a small image onto a larger image.