GCSE J277 - 1.2.4 - Representing Image Files

With a 1 bit colour depth image, how many bits are needed to represent each pixel?

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How many different colours can be represented in a 1 bit colour depth image?

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With a 2 bit colour depth image, how many bits are needed to represent each pixel?

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How many different colours can be represented in a 2 bit colour depth image?

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With a 3 bit colour depth image, how many bits are needed to represent each pixel?

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How many different colours can be represented in a 3 bit colour depth image?

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With a 4 bit colour depth image, how many bits are needed to represent each pixel?

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How many different colours can be reperesneted in a 4 bit colour depth image?

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• 16
• 32
• 64

What is resolution?

• The number of colours that can be represented in an image
• The number of years an image has existed
• The concentration of pixels within the image
• The name of exactly 100 pixels

What is colour depth?

• The number of colours that can be represented in an image
• How deep you can go with certain greys and blues
• A high concentration of pixels
• How many deep colours you can show