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Data Representation - Compression (Year 10 Computing)
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Question 1
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Reducing bits per pixel (colour depth) in an image will typically do what?
Which compression algorithm builds a dictionary of repeated patterns during compression?
In information theory, what does "entropy" of data measure in the context of compression?
If a 10 MB file compresses to 2 MB, what is the compression ratio?
Run-length encoding (RLE) is most effective on which type of data?
What happens when you try to compress a file that is already compressed?
What is an advantage of lossless compression?