JPEG XR

Material iz Vikipedii -- svobodnoi entsiklopedii
Tekushchaia versiia stranitsy poka ne proverialas' opytnymi uchastnikami i mozhet znachitel'no otlichat'sia ot versii, proverennoi 15 marta 2021 goda; proverki trebuiut 9 pravok.
Pereiti k navigatsii Pereiti k poisku
JPEG XR
Rasshirenie .jxr[1], .hdp[2], .wdp[2]
MIME-tip image/jxr[3] i image/vnd.ms-photo[4]
Razrabotchik JPEG
Microsoft
Opublikovan 14 aprelia 2009
Poslednii vypusk 1.0 (2009-03-19)
Tip formata Rastrovaia grafika
Rasshiren iz HD Photo[vd]
Standart(y) ITU-T Rec. T.832,
ISO/IEC 29199-2:2009
Sait jpeg.org/jpegxr/
Mediafaily na Vikisklade
Vozmozhno, eta stat'ia soderzhit original'noe issledovanie.
Prover'te sootvetstvie informatsii privedionnym istochnikam i udalite ili isprav'te informatsiiu, iavliaiushchuiusia original'nym issledovaniem. V sluchae neobkhodimosti podtverdite informatsiiu avtoritetnymi istochnikami. V protivnom sluchae stat'ia mozhet byt' vystavlena na udalenie. (6 aprelia 2023)

JPEG XR (ranee nazyvalsia HD Photo i Windows Media Photo) -- format kodirovaniia i failovyi format dlia fotografii, razrabotannyi i zapatentovannyi korporatsiei Microsoft.

Dannyi format podderzhivaetsia operatsionnoi sistemoi Windows Vista, a takzhe liuboi OS s ustanovlennym .NET Framework 3.0. On opredeliaet tsvetovye formaty dlia pechati i dlia otobrazheniia, kodirovanie tselochislennoi i s plavaiushchei zapiatoi dlia rasshireniia dinamicheskogo diapazona, optsii szhatiia s poteriami i bez, effektivnoe dekodirovanie dlia mnogikh razreshenii i minimal'nye zatraty komp'iuternykh resursov dlia preobrazovaniia ili dekodirovaniia.

V tselom effektivnost' JPEG XR dovol'no vysoka: tak, pri 85%-m kachestve uzhe prakticheski otsutstvuiut artefakty. Pri sravnenii s JPEG 2000 na 85 % pri men'shem razmere faila JPEG XR daiot men'she artefaktov.

Dostoinstva:

  • Bolee effektivnoe szhatie, chem JPEG, znachitel'no bystree otkryvaiutsia faily tekh zhe razmerov, chto i JPEG2000.
  • Podderzhka 16bit pozvoliaet khranit' snimki s polnym okhvatom tsvetov razmerom znachitel'no men'she, chem TIFF.
  • Vozmozhnost' lossless-szhatiia (szhatie bez poter', fail men'she analogichnogo PNG)
  • Vozmozhnost' ispol'zovat' al'fa-kanal (prozrachnost').
  • Mozhno ispol'zovat' ne tol'ko R8G8B8, no i drugie formaty, takie kak R32G32B32, YUV, CMYK.
  • Standartizirovan ISO i ECMA dlia svobodnogo ispol'zovaniia.
  • Korrektnoe otobrazhenie metadannykh (v JPEG2000 eto realizovano tol'ko na bumage).
  • Podderzhivaiut: XnView; Capture One; Photoshop (cherez plagin Windows [1] i OS ping.X[5]).
  • Podderzhka na nachal'nom urovne krupnymi proizvoditeliami programm dlia obrabotki fotografii otkryvaet bol'shie perspektivy razvitiia dannogo formata dlia osnovnykh platform.

Sm. takzhe

[pravit' | pravit' kod]

Primechaniia

[pravit' | pravit' kod]
  1. | Recommendation T.832 : Information technology - JPEG XR image coding system - Part 2: Image coding specification . International Telecommunication Union - Standardization sector (ITU-T) (16 marta 2008). Data obrashcheniia: 24 oktiabria 2009. Arkhivirovano iz originala 13 fevralia 2012 goda.
  2. | 1 2 Microsoft HD Photo Device Porting Kit Specification . Microsoft Corporation (7 noiabria 2006). Data obrashcheniia: 8 noiabria 2009. Arkhivirovano iz originala 13 fevralia 2012 goda.
  3. | http://www.iana.org/assignments/provisional-standard-media-types/provisional-standard-media-types.xhtml
  4. | TrID -- 2003.
  5. | JPEGXR Plug-in for Photoshop (Mac) . Microsoft Download Center. Data obrashcheniia: 23 avgusta 2016. Arkhivirovano 11 sentiabria 2016 goda.
Eto zagotovka stat'i o formate faila. Pomogite Vikipedii, dopolniv eio.
Video/audio
Audio
Muzyka
Rastrovye
Vektornye
Kompleksnye
Standarty ISO
1
po
9999
10000
po
19999
20000+
Istochnik -- https://ru.wikipedia.org/w/index.php?title=JPEG_XR&oldid=146204513