Bitmap Graphics

"Bitmap Graphics are stored as a grid of pixels, each pixel has a binary value."

A bitmap is an image made up of a grid of pixels.

Each pixel is like a tiny square in the image. Every single pixel has data attached to it that tells the computer what colour it should be.

That data is stored as binary.

Stored as a grid of pixels...

Bitmap images are always made up of a grid of pixels. Each pixel is like a tiny square in a big grid.

Every single pixel needs to be given a colour, even if that colour is just white.

In the smiley face example, every pixel is coloured in, whether its white, yellow or black. This grid of pixel makes up the full bitmap graphic.

...each pixel has a binary value.

Bitmap images are always made up of a grid of pixels. Each pixel is like a tiny square in a big grid.

Every single pixel needs to be given a colour, even if that colour is just white.

In the smiley face example, every pixel is coloured in, whether its white, yellow or black. This grid of pixel makes up the full bitmap graphic.

Bitmap graphics are simply images made from a grid of pixels, where each pixel is stored as a binary value.

Understanding that every pixel — even a white one — needs to be stored using binary is key. Grasping this idea is an important part of understanding how computers handle visual data at National 5 level.

National 5 Target

You should be able to describe how a bitmap graphic is stored in a computer.