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Bitmap graphics

What is bitmap graphic?

Computers can display images using a grid.

Each square on the grid is called a pixel.

A bitmap graphic is a grid of pixels.

Resolution

  • The resolution of a graphic is the number of pixels used to create it
  • It is written as width x height
  • The resolution of this flower image is 7 x 9

How does resolution affect quality?

Lower resolution bitmaps contain fewer pixels, resulting in less image detail.

Higher resolution bitmaps contain more pixels, resulting in greater image detail.

Targets

I can define the term bitmap graphic

I can define the term pixel

I can define the term resolution

I can explain how resolution affects image quality

I can identify the resolution of a bitmap graphic

I can create a bitmap graphic

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