A bit plane is like a puzzle piece that helps us see a picture on a computer. Imagine a picture made up of many tiny squares, each square can be filled with different colors like red, blue, and green. These colors are made up of something called bits, which are tiny pieces of information that the computer uses to create the colors.
Now, let's imagine we are trying to look at just one of those colors in the picture, like the red color. A bit plane separates all the red bits from the blue and green bits. It's like taking all the red puzzle pieces and putting them together on their own. This helps us see just the red color and ignore all the other colors.
We can use bit planes for different things, like finding edges in a picture or compressing it so it takes up less space on the computer. It's like separating all the puzzle pieces and putting them back together in a different way to create a new picture with new information.