Computing: Representing Images

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  • Created by: Adam100
  • Created on: 29-03-15 16:01
How are images displayed on a computer?
Images are made up of many individual pixels which use binary to determine what they look like.
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How does binary work with images?
For example, where there are only two colours in a picture 1 represents one colour and 0 represents the other.
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What is colour depth?
The number of bits available to represent each pixel
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What is meant by resolution?
The pixels per inch (PPI). If the PPI is high, the resolution & image quality is also high.
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What is metadata?
Information about the image data allowing the computer to recreate the image using binary. This must include height, width, and colour depth.
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Define "pixel"
The smallest element of an image. A combination of pixels makes an image on the screen.
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Other cards in this set

Card 2

Front

How does binary work with images?

Back

For example, where there are only two colours in a picture 1 represents one colour and 0 represents the other.

Card 3

Front

What is colour depth?

Back

Preview of the front of card 3

Card 4

Front

What is meant by resolution?

Back

Preview of the front of card 4

Card 5

Front

What is metadata?

Back

Preview of the front of card 5
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