AVIF (AV1 Image File Format)

AVIF est un format d'image de nouvelle generation base sur le codec video open source AV1. Il offre une efficacite de compression superieure, souvent 50 % plus petit que JPEG et 20 % plus petit que WebP a qualite equivalente. AVIF prend en charge le HDR, la gamme de couleurs etendue, la transparence et l'animation.

Type MIME

image/avif

Type

Binaire

Compression

Avec perte

Avantages

+ Best-in-class compression efficiency
+ Royalty-free and open-source codec
+ HDR and wide color gamut support
+ Growing browser support

Inconvénients

− Slower encoding than JPEG or WebP
− Not yet universally supported
− Limited tooling compared to established formats

Quand utiliser .AVIF

Utilisez AVIF comme amelioration progressive pour les sites web, en le servant aux navigateurs compatibles tout en proposant WebP ou JPEG en solution de repli.

Détails techniques

AVIF utilise le codage intra-image AV1 avec des transformees avancees et des modes de prediction. Il prend en charge les profondeurs de couleur 8, 10 et 12 bits, le chroma 4:4:4, le HDR10 et les fonctions de transfert PQ/HLG.

Historique

AVIF a ete finalise par l'Alliance for Open Media en fevrier 2019. Chrome a ajoute la prise en charge en 2020, et Safari a suivi en 2023, completant la couverture des principaux navigateurs.

Convertir depuis .AVIF

.avif → .bmp .avif → .gif .avif → .heic .avif → .heif .avif → .ico .avif → .jpeg .avif → .jpg .avif → .jxl .avif → .png .avif → .psd .avif → .qoi .avif → .raw .avif → .tif .avif → .tiff .avif → .webp

Convertir en .AVIF

.bmp → .avif .gif → .avif .heic → .avif .heif → .avif .ico → .avif .jpeg → .avif .jpg → .avif .jxl → .avif .png → .avif .psd → .avif .qoi → .avif .raw → .avif .tif → .avif .tiff → .avif .webp → .avif

Formats associés

.ai .apng .arw .bmp .cr2 .dng .eps .gif .heic .heif .ico .jpeg .jpg .jxl .nef .png .psd .qoi .raw .svg .tif .tiff .webp .xcf

Termes associés

AVIF AVIF Sequence Lossy Compression

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