Unit 3: Data Representation: Lossy Compression Flashcards

(6 cards)

1
Q

Lossy compression removes quality that can be put back. True or False?

A

False

Lossy compression permanently removes some data, making it impossible to restore the original quality.

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2
Q

The number of pixels in an image is called …….?

A

Resolution

Resolution defines the detail an image holds, typically measured in pixels.

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3
Q

If you increase the sample rate of a sound file you make the quality?

A

Better

A higher sample rate captures more detail in the sound, improving quality.

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4
Q

If you increase the number of pixels in an image you.

A

Increase the file size

More pixels generally mean more data, leading to larger file sizes.

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5
Q

Colour depth refers to?

A

The number of colours that can represent a pixel

Colour depth affects the range of colours displayed in an image.

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6
Q

We compress files so they cannot be read. True or False?

A

False

Compression is used to reduce file size while keeping the data readable.

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