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Images, Sound and Compression (1.2)
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Total cards: 4•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (4)
#1
Front (Question)
What is colour depth
Back (Answer)
• number of bits used to represent each colour
#2
Front (Question)
What is pixel resolution
Back (Answer)
• total pixels in the image
#3
Front (Question)
What is lossy compression
Back (Answer)
• compresses the file size by a considerable amount, so it takes up much less storage space, however the change is irreversible and the quality of the data is lowered significantly
#4
Front (Question)
What is Lossless compression
Back (Answer)
• compresses the file size by a smaller amount so file may not be as fast to transfer but the changes are reversible so the original quality of the image is not affected when original file is obtained back