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Data compression

Data compression

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Question 18

A meteorological research probe transmits high-resolution horizontal scanlines of cloud formations. Each scanline consists of binary pixel data representing either sky (0) or cloud (1).

Explain the key structural characteristic this binary pixel data must exhibit for Run-Length Encoding (RLE) to achieve a high compression ratio.

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Markscheme

Data compression Questions

  1. GCSE
  2. /Computer Science
  3. /Data compression

37 exam-style questions on AQA GCSE Computer Science Data compression. Each one has a worked solution and a mark scheme showing where the marks go.

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