Tencent Music Tech Team
Jun 30, 2017 · Fundamentals
Understanding GIF Format, LZW Compression, and Color Quantization Techniques
The GIF format, introduced by CompuServe in 1987, uses LZW lossless compression and a block‑based file structure supporting 256‑color palettes, transparency, and animation, while efficient color‑quantization methods such as octree trees dramatically speed encoding compared to slower median‑cut algorithms without sacrificing visual quality.
GIFLZWcolor quantization
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