Portable Network Graphics
Portable Network Graphics (PNG /ˈpɪŋ/[2] PING), or PNG's Not GIF,[3] is a raster graphics file furmat that supports lossless data compression. PNG wis creatit as an improved, non-patentit replacement for Graphics Interchange Format (GIF), an is the maist uised lossless image compression format on the Internet.[4]
| 64px | |
  A PNG image wi an 8-bit transparency channel (tap). The same image is owerlaid ontae a checkered backgrund (bottom), typically uised in graphics saftware tae indicate transparency. | |
| Filename extension | .png |
|---|---|
| Internet media type | image/png |
| Teep code | PNGfPNG |
| Uniform Type Identifier (UTI) | public.png |
| Magic nummer | 89 50 4e 47 0d 0a 1a 0a |
| Developit bi | PNG Development Group (donatit tae W3C) |
| Ineetial release | 1 October 1996 |
| Teepe o format | lossless bitmap image format |
| Extendit tae | APNG, JNG an MNG |
| Staundart | ISO/IEC 15948,[1] IETF RFC 2083 |
| Appen format? | Yes |
ReferencesEedit
- ↑ "ISO/IEC 15948:2004 - Information technology -- Computer graphics and image processing -- Portable Network Graphics (PNG): Functional specification". Retrieved 19 Februar 2011.
- ↑ "History of PNG". Libpng.org. 29 Mey 2010. Retrieved 20 October 2010.
- ↑ http://www.youtube.com/watch?v=1Uw_ENS6rAU
- ↑ Matthias Gelbmann (31 Januar 2013). "The PNG image file format is now more popular than GIF". W3Techs. Q-Success. Retrieved 22 Mairch 2013.
PNG is now used on 62.4% of all websites, just ahead of GIF with 62.3%.