Simple/Basic steganography algorithms and methods

Question

What are the basic and simpliest steganography algorithms and methods?

I mean the steganography applied to images.

How does a simple pr

Answer 1

There are literally infinite ways to hide information in images.

One simple way is to notice that changing the least significant bit of each RGB value doesn't make a noticeable difference, so setting the least-significant bit of every byte in the image gives us (#-bits-in-image / 8) bits to store hidden data in.