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How does image compression work? | Lee Robinson

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A visual guide to lossy and lossless image compression.

How does image compression work? | Lee Robinson How does image compression work? December 2025 – Lee Robinson We use images every day but rarely stop to think about how they work. Reality has a lot of complexity. Have you ever really thought about how images work? Obviously there are files, but what's inside those files? How do we compress them down to smaller files without losing quality? Compressing data (text, images, video, audio) is a core part of how computers work. It's the foundation of the internet, the file system, and most of the software we use every day. It's a fascinating topic!

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