Système international d'unité (SI):Ratio de compression de fichiers=Taille d'origine
Taille d'origine | Taille comprimée | Ratio de compression | Pourcentage de compression | Bits par seconde | Compression de texte (zip) | Compression d'image (PNG) | Compression d'image (JPEG) | Compression audio (mp3) | Compression vidéo (MP4) | Compression des archives (TAR) | Compression des archives (GZ) | Compression des archives (7Z) | Compression des archives (RAR) | Compression de texte sans perte | Compression audio sans perte | Compression vidéo sans perte | Codage vidéo à haute efficacité | Huffman codant pour compression | Compression de l'algorithme LZ77 | Compression de l'algorithme LZ78 | Algorithme Lemple-Ziv-Markov | Compression bzip2 | Dégonfler la compression | Compression de codage arithmétique | Encodage de longueur | Algorithme LZSS | Compression JPEG 2000 | Compression audio ogg vorbis | Compression d'image webp | |
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Taille d'origine | 1 | 1 | 1 | 1 | 1 | 1.5 | 2 | 3 | 10 | 15 | 1 | 3 | 4 | 4.5 | 2.5 | 5 | 8 | 10 | 3 | 3.5 | 4 | 5 | 4 | 2.8 | 3.2 | 2 | 3.5 | 4 | 8 | 5.5 |
Taille comprimée | 1 | 1 | 1 | 1 | 1 | 1.5 | 2 | 3 | 10 | 15 | 1 | 3 | 4 | 4.5 | 2.5 | 5 | 8 | 10 | 3 | 3.5 | 4 | 5 | 4 | 2.8 | 3.2 | 2 | 3.5 | 4 | 8 | 5.5 |
Ratio de compression | 1 | 1 | 1 | 1 | 1 | 1.5 | 2 | 3 | 10 | 15 | 1 | 3 | 4 | 4.5 | 2.5 | 5 | 8 | 10 | 3 | 3.5 | 4 | 5 | 4 | 2.8 | 3.2 | 2 | 3.5 | 4 | 8 | 5.5 |
Pourcentage de compression | 1 | 1 | 1 | 1 | 1 | 1.5 | 2 | 3 | 10 | 15 | 1 | 3 | 4 | 4.5 | 2.5 | 5 | 8 | 10 | 3 | 3.5 | 4 | 5 | 4 | 2.8 | 3.2 | 2 | 3.5 | 4 | 8 | 5.5 |
Bits par seconde | 1 | 1 | 1 | 1 | 1 | 1.5 | 2 | 3 | 10 | 15 | 1 | 3 | 4 | 4.5 | 2.5 | 5 | 8 | 10 | 3 | 3.5 | 4 | 5 | 4 | 2.8 | 3.2 | 2 | 3.5 | 4 | 8 | 5.5 |
Compression de texte (zip) | 0.667 | 0.667 | 0.667 | 0.667 | 0.667 | 1 | 1.333 | 2 | 6.667 | 10 | 0.667 | 2 | 2.667 | 3 | 1.667 | 3.333 | 5.333 | 6.667 | 2 | 2.333 | 2.667 | 3.333 | 2.667 | 1.867 | 2.133 | 1.333 | 2.333 | 2.667 | 5.333 | 3.667 |
Compression d'image (PNG) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.75 | 1 | 1.5 | 5 | 7.5 | 0.5 | 1.5 | 2 | 2.25 | 1.25 | 2.5 | 4 | 5 | 1.5 | 1.75 | 2 | 2.5 | 2 | 1.4 | 1.6 | 1 | 1.75 | 2 | 4 | 2.75 |
Compression d'image (JPEG) | 0.333 | 0.333 | 0.333 | 0.333 | 0.333 | 0.5 | 0.667 | 1 | 3.333 | 5 | 0.333 | 1 | 1.333 | 1.5 | 0.833 | 1.667 | 2.667 | 3.333 | 1 | 1.167 | 1.333 | 1.667 | 1.333 | 0.933 | 1.067 | 0.667 | 1.167 | 1.333 | 2.667 | 1.833 |
Compression audio (mp3) | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.15 | 0.2 | 0.3 | 1 | 1.5 | 0.1 | 0.3 | 0.4 | 0.45 | 0.25 | 0.5 | 0.8 | 1 | 0.3 | 0.35 | 0.4 | 0.5 | 0.4 | 0.28 | 0.32 | 0.2 | 0.35 | 0.4 | 0.8 | 0.55 |
Compression vidéo (MP4) | 0.067 | 0.067 | 0.067 | 0.067 | 0.067 | 0.1 | 0.133 | 0.2 | 0.667 | 1 | 0.067 | 0.2 | 0.267 | 0.3 | 0.167 | 0.333 | 0.533 | 0.667 | 0.2 | 0.233 | 0.267 | 0.333 | 0.267 | 0.187 | 0.213 | 0.133 | 0.233 | 0.267 | 0.533 | 0.367 |
Compression des archives (TAR) | 1 | 1 | 1 | 1 | 1 | 1.5 | 2 | 3 | 10 | 15 | 1 | 3 | 4 | 4.5 | 2.5 | 5 | 8 | 10 | 3 | 3.5 | 4 | 5 | 4 | 2.8 | 3.2 | 2 | 3.5 | 4 | 8 | 5.5 |
Compression des archives (GZ) | 0.333 | 0.333 | 0.333 | 0.333 | 0.333 | 0.5 | 0.667 | 1 | 3.333 | 5 | 0.333 | 1 | 1.333 | 1.5 | 0.833 | 1.667 | 2.667 | 3.333 | 1 | 1.167 | 1.333 | 1.667 | 1.333 | 0.933 | 1.067 | 0.667 | 1.167 | 1.333 | 2.667 | 1.833 |
Compression des archives (7Z) | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.375 | 0.5 | 0.75 | 2.5 | 3.75 | 0.25 | 0.75 | 1 | 1.125 | 0.625 | 1.25 | 2 | 2.5 | 0.75 | 0.875 | 1 | 1.25 | 1 | 0.7 | 0.8 | 0.5 | 0.875 | 1 | 2 | 1.375 |
Compression des archives (RAR) | 0.222 | 0.222 | 0.222 | 0.222 | 0.222 | 0.333 | 0.444 | 0.667 | 2.222 | 3.333 | 0.222 | 0.667 | 0.889 | 1 | 0.556 | 1.111 | 1.778 | 2.222 | 0.667 | 0.778 | 0.889 | 1.111 | 0.889 | 0.622 | 0.711 | 0.444 | 0.778 | 0.889 | 1.778 | 1.222 |
Compression de texte sans perte | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.6 | 0.8 | 1.2 | 4 | 6 | 0.4 | 1.2 | 1.6 | 1.8 | 1 | 2 | 3.2 | 4 | 1.2 | 1.4 | 1.6 | 2 | 1.6 | 1.12 | 1.28 | 0.8 | 1.4 | 1.6 | 3.2 | 2.2 |
Compression audio sans perte | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.4 | 0.6 | 2 | 3 | 0.2 | 0.6 | 0.8 | 0.9 | 0.5 | 1 | 1.6 | 2 | 0.6 | 0.7 | 0.8 | 1 | 0.8 | 0.56 | 0.64 | 0.4 | 0.7 | 0.8 | 1.6 | 1.1 |
Compression vidéo sans perte | 0.125 | 0.125 | 0.125 | 0.125 | 0.125 | 0.188 | 0.25 | 0.375 | 1.25 | 1.875 | 0.125 | 0.375 | 0.5 | 0.563 | 0.313 | 0.625 | 1 | 1.25 | 0.375 | 0.438 | 0.5 | 0.625 | 0.5 | 0.35 | 0.4 | 0.25 | 0.438 | 0.5 | 1 | 0.688 |
Codage vidéo à haute efficacité | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.15 | 0.2 | 0.3 | 1 | 1.5 | 0.1 | 0.3 | 0.4 | 0.45 | 0.25 | 0.5 | 0.8 | 1 | 0.3 | 0.35 | 0.4 | 0.5 | 0.4 | 0.28 | 0.32 | 0.2 | 0.35 | 0.4 | 0.8 | 0.55 |
Huffman codant pour compression | 0.333 | 0.333 | 0.333 | 0.333 | 0.333 | 0.5 | 0.667 | 1 | 3.333 | 5 | 0.333 | 1 | 1.333 | 1.5 | 0.833 | 1.667 | 2.667 | 3.333 | 1 | 1.167 | 1.333 | 1.667 | 1.333 | 0.933 | 1.067 | 0.667 | 1.167 | 1.333 | 2.667 | 1.833 |
Compression de l'algorithme LZ77 | 0.286 | 0.286 | 0.286 | 0.286 | 0.286 | 0.429 | 0.571 | 0.857 | 2.857 | 4.286 | 0.286 | 0.857 | 1.143 | 1.286 | 0.714 | 1.429 | 2.286 | 2.857 | 0.857 | 1 | 1.143 | 1.429 | 1.143 | 0.8 | 0.914 | 0.571 | 1 | 1.143 | 2.286 | 1.571 |
Compression de l'algorithme LZ78 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.375 | 0.5 | 0.75 | 2.5 | 3.75 | 0.25 | 0.75 | 1 | 1.125 | 0.625 | 1.25 | 2 | 2.5 | 0.75 | 0.875 | 1 | 1.25 | 1 | 0.7 | 0.8 | 0.5 | 0.875 | 1 | 2 | 1.375 |
Algorithme Lemple-Ziv-Markov | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 | 0.4 | 0.6 | 2 | 3 | 0.2 | 0.6 | 0.8 | 0.9 | 0.5 | 1 | 1.6 | 2 | 0.6 | 0.7 | 0.8 | 1 | 0.8 | 0.56 | 0.64 | 0.4 | 0.7 | 0.8 | 1.6 | 1.1 |
Compression bzip2 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.375 | 0.5 | 0.75 | 2.5 | 3.75 | 0.25 | 0.75 | 1 | 1.125 | 0.625 | 1.25 | 2 | 2.5 | 0.75 | 0.875 | 1 | 1.25 | 1 | 0.7 | 0.8 | 0.5 | 0.875 | 1 | 2 | 1.375 |
Dégonfler la compression | 0.357 | 0.357 | 0.357 | 0.357 | 0.357 | 0.536 | 0.714 | 1.071 | 3.571 | 5.357 | 0.357 | 1.071 | 1.429 | 1.607 | 0.893 | 1.786 | 2.857 | 3.571 | 1.071 | 1.25 | 1.429 | 1.786 | 1.429 | 1 | 1.143 | 0.714 | 1.25 | 1.429 | 2.857 | 1.964 |
Compression de codage arithmétique | 0.313 | 0.313 | 0.313 | 0.313 | 0.313 | 0.469 | 0.625 | 0.938 | 3.125 | 4.688 | 0.313 | 0.938 | 1.25 | 1.406 | 0.781 | 1.563 | 2.5 | 3.125 | 0.938 | 1.094 | 1.25 | 1.563 | 1.25 | 0.875 | 1 | 0.625 | 1.094 | 1.25 | 2.5 | 1.719 |
Encodage de longueur | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.75 | 1 | 1.5 | 5 | 7.5 | 0.5 | 1.5 | 2 | 2.25 | 1.25 | 2.5 | 4 | 5 | 1.5 | 1.75 | 2 | 2.5 | 2 | 1.4 | 1.6 | 1 | 1.75 | 2 | 4 | 2.75 |
Algorithme LZSS | 0.286 | 0.286 | 0.286 | 0.286 | 0.286 | 0.429 | 0.571 | 0.857 | 2.857 | 4.286 | 0.286 | 0.857 | 1.143 | 1.286 | 0.714 | 1.429 | 2.286 | 2.857 | 0.857 | 1 | 1.143 | 1.429 | 1.143 | 0.8 | 0.914 | 0.571 | 1 | 1.143 | 2.286 | 1.571 |
Compression JPEG 2000 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.375 | 0.5 | 0.75 | 2.5 | 3.75 | 0.25 | 0.75 | 1 | 1.125 | 0.625 | 1.25 | 2 | 2.5 | 0.75 | 0.875 | 1 | 1.25 | 1 | 0.7 | 0.8 | 0.5 | 0.875 | 1 | 2 | 1.375 |
Compression audio ogg vorbis | 0.125 | 0.125 | 0.125 | 0.125 | 0.125 | 0.188 | 0.25 | 0.375 | 1.25 | 1.875 | 0.125 | 0.375 | 0.5 | 0.563 | 0.313 | 0.625 | 1 | 1.25 | 0.375 | 0.438 | 0.5 | 0.625 | 0.5 | 0.35 | 0.4 | 0.25 | 0.438 | 0.5 | 1 | 0.688 |
Compression d'image webp | 0.182 | 0.182 | 0.182 | 0.182 | 0.182 | 0.273 | 0.364 | 0.545 | 1.818 | 2.727 | 0.182 | 0.545 | 0.727 | 0.818 | 0.455 | 0.909 | 1.455 | 1.818 | 0.545 | 0.636 | 0.727 | 0.909 | 0.727 | 0.509 | 0.582 | 0.364 | 0.636 | 0.727 | 1.455 | 1 |