Ratios, Savings & Overhead: Compression Ratio, Base-64 Size and Headers
This lesson is part of the course
In this lesson
You calculate the compression ratio and saving of five files, find the one that got bigger, work out the base-64 size of a compressed file for sending as text, and calculate the overall saving.
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Lessons in this course
- Bits & Bytes of Text: Characters, Raw Size & a Fixed-Length Code Locked
- Run-Length Encoding: Runs in a Scan Line, Encoded Size & When RLE Backfires Locked
- Symbol Frequencies: Counting Symbols, Probabilities & Surprise Locked
- Entropy: −Σ p · log₂ p and the Minimum Bits per Symbol Locked
- Huffman Codes: Merging the Two Smallest Weights, Code Lengths & Average Bits Locked
- Ratios, Savings & Overhead: Compression Ratio, Base-64 Size and Headers Locked
- Lossy Compression: Quantising to Steps, Error & Signal-to-Noise Ratio Locked
- Capstone: Storage and Transfer Savings from Compression Ratios Locked