Graphics Interchange Format

Internet > Pratique
2021-10-03 16:06:49
GIF is a bitmap image format that allows a lossless compression by reducing the image to 256 distinct colors. It has been replaced by PNG after fear over patent issues. It is still widely used for animation as it's the only format that supports animation and that is widely supported by browsers.
Formats de fichiers images les plus utilisés
GIF
Développé parCompuServe
Année1987 (still)
1989 (animated)
AvantagesSimple animations/short video clips
Widely supported format
Transparency support
Lossless compression
Smaller file sizes
InconvénientsLimited to 256 colors (8-bit per pixel). Only binary transparency.
Fonctionnalités
Image vectorielleNon
Image matricielle (Raster)Oui
Format sans perteOui
Support animationOui
Support de la transparence- Only all-or-nothing, no semi-transparency
Support des couchesNon
HDRNon
Profondeur de couleur max. (bit depth)8-bit (but only 256 different colors)
Supporte CMYK (pour l'imprimerie)Non
Nombre de canaux max.1 (palette data)
Utilisations communesAnimation
Simple web graphics
Navigateurs supportés (sans plugin)
Google ChromeOui
Microsoft EdgeOui
SafariOui
FirefoxOui
OperaOui
Internet ExplorerOui
Autre
Extensions.gif
Wikipédiahttp://en.wikipedia.org/wiki/Graphics_Interchange_Format
  • 2011-04-11 23:49:06
    2021-10-03 16:06:49
  • Pratique
    English
  • Publique
    Publique
  • Creative Commons License CC-BY-SA 3.0 / GNU FDL