JPEG
| JPEG | |
|---|---|
 Metung a letratu ning sampagang paragdag nang paragdag ing kayang lossy compression ratio manibat kaili anggang wanan | |
| File extension | .jpg, .jpeg, .jpe
|
| MIME type | image/jpeg
|
| Type code | JPEG |
| Uniform Type Identifier | public.jpeg |
| Magic number | ff d8 |
| Developed by | Joint Photographic Experts Group |
| Type of format | lossy image format |
King computing, ing JPEG (a yagkas dang JAY-peg; IPA: /ˈdʒeɪpɛɡ/), metung yang maralas gagamitan a paralan ning compression para kareng letratu (photographic images). Maliari yang alilan ing sikan (o pangasiksik) ning pamag-compress, ania maliaring mamili king dagul ning simpan (file size) ampo ing lino ning larawan. Keraklan, babie yang 10 to 1 compression ing JPEG, at ditak mu ing mayayakit a pangabawas king lino ning larawan.
Ing JPEG ing maralas diling magagamit a format para kareng larawan a gagamitan da reng digital camera ampo reng aliwang kasangkapan a kukuang larawan. Iti murin ing pekamaralas dang gagamitan king pamagsimpan (storing) ampong pamagparalang larawan kapamilatan ning World Wide Web.
Ing MIME media type para king JPEG, image/jpeg ya (defined ya king RFC 1341).
Ing JPEG standard
[mag-edit | alilan ya ing pikuwanan]Ing lagiung "JPEG" mangabaldugan yang Joint Photographic Experts Group, ing lagiu ning komite o lupung a miglalang ketang standard. Mitátag ya iting grupu aniang 1986, at migpalual yang standard kanitang [[1992[[, at me-apruba ya o metanggap iti kanitang 1994 antimong ISO 10918-1. Aliwa ya ing JPEG king MPEG (Moving Picture Experts Group), a gagawang sistema ning pamag-compress para kareng alben o video.
Tutulduan/lilinawan ne ning JPEG standard ing codec, a mag-isplika nung makananu yang ko-compress o sisiksik ing metung a larawan king agus (stream) da reng byte, at lalako nong pasibayu pangasiksik (decompress) deti ba lang isubli pangabalangkas king metung a larawan, ampo ing file format a magagamit king pamaglangkap o pamanyinup (contain) king agus a ita.
Deng standard
[mag-edit | alilan ya ing pikuwanan]- JPEG (lossy and lossless): ITU-T T.81, ISO/IEC IS 10918-1
- JPEG (extensions): ITU-T T.84
- JPEG-LS (lossless, improved): ITU-T T.87, ISO/IEC IS 14495-1
- JBIG (black and white pictures): ITU-T T.82, ISO/IEC IS 11544-1
- JPEG 2000 (successor of JPEG/JPEG-LS): ITU-T T.800, ISO/IEC IS 15444-1
- JPEG-2000 (extensions): ITU-T T.801
Lon la murin deti
[mag-edit | alilan ya ing pikuwanan]- Image compression
- Image file formats
- Comparison of graphics file formats
- Windows Picture and Fax Viewer
- Exchangeable image file format (Exif)
- JPEG File Interchange Format (JFIF)
- Design rule for Camera File system (DCF)
- JPEG 2000
- Motion JPEG
- Graphics editing program
- GDI+ vulnerability section of GDI article, exploitable bug in JPEG handling code of GDI+ library
- Comparison of layout engines (graphics)
- Generation loss
- PGF
- PNG
- Lossless Image Codec FELICS
- C-Cube an early implementer of JPEG in chip form
- Libjpeg of Independent JPEG Group
- Deblocking filter (video), the similar deblocking methods could be applied to JPEG
- Lenna, the traditional standard image used to test image processing algorithms
Dalerayan
[mag-edit | alilan ya ing pikuwanan]Suglung palual
[mag-edit | alilan ya ing pikuwanan]- JPEG Standard (JPEG ISO/IEC 10918-1 ITU-T Recommendation T.81) as PDF or HTML[suglung a mepatad]
- Official Joint Photographic Experts Group site
- JPEG FAQ
- Wotsit.org's entry Archived Disyembri 9, 2008 at the Wayback Machine on the JPEG format
- JFIF File Format as PDF or HTML
- The JPEG Still Picture Compression Standard, Summary by Gregory K. Wallace[suglung a mepatad] (Gzipped PostScript file)
- JPEG Ckmpression (Gernot Hoffman) Archived Setyembri 10, 2005 at the Wayback Machine
- Article about hidden data in JPEG files
- More about hidden extras, plus a program to remove them
- DCTlab: Matlab GUI Archived Agostu 20, 2008 at the Wayback Machine
- JPEG deringing and deblocking: Matlab software and Photoshop plug-in
- Jim M. Goldstein: RAW vs JPEG: Is Shooting RAW Format For Me? Archived Mayu 27, 2013 at the Wayback Machine
- David Austin: Image Compression: Seeing What's Not There
- Oskar Breuning: JPEG Compression: Data Loss & Image Impact Archived Setyembri 16, 2008 at the Wayback Machine
- Intel Integrated Performance Primitives
- [lttp://www.jpegtutor.co.uk JPEG Tutor], an interactive applet allowing you to investigate the effects of changing the quantisation matrix.
- JPEGdump, a command line program that dumps information about the markers in a JPEG file
