Kuchepetsa JPEG

Kuchita JPEG images Kukula Kwambiri Pa intaneti

Sankhani fayilo yanu

*Mafayilo achotsedwa patatha maola 24

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Kukweza

Momwe Mungachotse JPEG

1 Ikani JPEG images yanu m'bokosi la pamwambapa, kapena gwiritsani ntchito kuchokera pa chipangizo chanu - palibe chomwe chimafunikira kukhazikitsa komanso palibe akaunti yopanga.

2 Sankhani mmene zovuta kupweteka: quality kapena bitrate zofuna, ndi optionally ochepa kutalika ngati kukula ndi zofunika kwambiri kwa inu kuposa deta.

3 Kuyamba ntchito ndi kulola ogwira ntchito re-kupaka wapamwamba; wanu oyambirira si nthawi zonse anasintha m'malo.

4 Poyerekeza ndi kukula kwatsopano ndi mtundu wachibadwa, kenako ndikutsitsa fayilo ya JPEG yosinthidwa.

Kuchepetsa JPEG Mafunso Ofala

Kodi mtundu wa fayilo yanga umasintha kuchuluka kwa ndalama zomwe ndingapulumutse?

Chotero kwambiri. JPEG ndi codec yofanana ndi JPG pansi pa chida chowonjezera - DCT yofanana, tambala yofanana yowerengera, palibe chomwe chimasintha ndi dzina la fayilo. Izi zimatsimikizira kuti pali ma headroom omwe alipo komanso ngati kupulumutsa kumakuwononga chilichonse m'chilungamo.

Kodi pali chinachake chokhacho cha JPEG chomwe ndingadziwepo mukadzaza?

Yes — the.jpeg ndi.jpg zowonjezera ndi chimodzimodzi bitstream, choncho palibe apa amachita mosiyana ndi.jpg — zosintha zokha za dzina la fayilo. Ndikofunika kudziwa kuti musanayambe kulemba pazomwe mungafunensonso.

Kodi ndi chiyani cholakwika chofala kwambiri pamene mukutsitsa JPEG images?

Kuzizira wapamwamba chimodzimodzi mobwerezabwereza. Kawirikawiri pa lossy mtundu ndi chitukuko chatsopano cha kuwonongeka ndi kupulumutsa kuchepetsa pamene kuwonongeka kumawonjezeka. Pitani kuchokera ku asalowe ku cholinga chanu m'njira imodzi, ndipo kusunga asalowe.

Kodi ndikufuna chiyani, ndipo ndingayang'ane bwanji kusiyana kwa ndalamazo?

Fayilo imodzi yozizira pa input, pa quality kapena bitrate level yomwe mumasankha kuposa default yokhazikika. Ngati zotsatirazo si zazing'ono kwambiri, kusintha kwa kutalika kapena nthawi yotenga zidzachita zambiri kuposa kuchepetsa quality slider.

Kodi ndingagwiritse ntchito Kuchepetsa JPEG pa JPEG images angapo nthawi imodzi?

Yai. Chotsani zonse zomwe zili m'malo otsitsa ndipo zidzayang'ana mofanana ndi zosankha zofanana - zomwe ndichifukwa chachikulu chochita izi m'masamba osakatuli kuposa fayilo imodzi nthawi imodzi m'mutu. Maakaunti aulere amayendetsa fayilo imodzi panthawi ya batani; kutuluka kwachidule.

Kodi chimachitika ndi EXIF ndi mtundu wa profile deta?

EXIF ya kamera (ISO, shutter, lens, GPS) ndi ICC profile yophatikizidwa imapita ku default, chifukwa kuchotsa profile ndi komwe kumachititsa kuti mabala azisintha pa kulowanso.

Kodi Kuchepetsa JPEG imawononga chilichonse?

No. Kuchepetsa JPEG ndi ufulu popanda akaunti, palibe watermark pazotulutsa ndi palibe khoma lolembetsa m'mbuyo mwa kutsitsa. Kutsitsa kumatha kuchotsanso nthawi yochepa pambuyo pomaliza ntchito.

Kodi pali malire a kukula kwa fayilo pa Kuchepetsa JPEG?

Yai: maakaunti aulere amapanga zithunzi mpaka ku 5 MB, zomwe zimakhudza kwambiri kamera iliyonse JPG ndi foni; ntchitoyi imachitika ndi libjpeg-turbo ndi libwebp, mabuku omwewo omwe wolemba deta amagwirizana nawo. Mafayilo akuluakulu ndi chinthu chimodzi chomwe chimalepheretsa chida chosalipira, ndipo chida chokha chili ndi fayilo imodzi kuposa fayilo imodzi.

Nchifukwa chiyani malo a PNG amalandira Kuchepetsa JPEG?

PNG.to imapangidwa m'njira yomwe mumagwiritsa ntchito pamene simungathe kuwononga pixel: osatha, alpha-oyenera, ndi yankho loyenera kwa zithunzi zazithunzi, ma logo, line art ndi chilichonse chomwe chili ndi maziko olimba. Ntchito ya chithunzi siyimangokhala ndi gawo limodzi: anthu amafika kuti asinthire mtundu ndi kuchoka kufunikira chithunzi cha mtundu wina, kulemera kosiyana kapena mtundu wina. Kuyendetsa Kuchepetsa JPEG pamodzi ndi kutsitsa, ma caps amtundu umodzi ndi akaunti imodzi ndichifukwa chake ndi apa ndipo si pa tabu yachiwiri.

Kodi ndingachite chiyani ndi zotsatirazi pamene Kuchepetsa JPEG yatha?

Wosintha patsamba lino amasintha zithunzi ku PNG, JPG, WebP, GIF ndi SVG - zomwe ndi njira yomwe lamulo la kuwala kwa chilengedwe limapangidwa. Izi ndi njira yomwe anthu ambiri adapita, ndipo amachita izi pambuyo pa Kuchepetsa JPEG kuposa kale, kumatanthauza kuti kusintha kwa ntchito kumachokera ku fayilo yomwe mwamaliza kukhazikitsa.

Kodi Kuchepetsa JPEG pano ndi chinthu chomwecho chomwe masamba a sibling amayendetsa?

Magalimoto amagawana - mabuku omwewo, ogwira ntchito omwewo, ma limits omwewo. Zosiyana ndi malangizo, ndipo malangizowa amayamba kuchokera ku chinthu chimodzi chokhudza mtundu womwe umagwiritsidwa ntchito patsamba lino: palibe slider yabwino yosayenera - PNG imayenda m'mphepete mwa maulendo a bit-exactly, choncho chinthu chokhacho chomwe chimasintha mtengo wanu ndi kukula kwa fayilo. A PNG sitepe amaganiza za komwe PNG ndi malo abwino komanso komwe si, ndipo lamuloli limatanthauza zambiri kuposa batani.

Kodi ndiyenera kukhala ndi akaunti, ndipo kodi zinthu zina zimasunga?

Sichingakhale akaunti, ndipo palibe chomwe chimasunga: zotsitsa zimachotsa ntchito za ogwira ntchito pambuyo pomaliza ntchito, ndipo palibe chomwe mumapanga chimasinthidwa, kupezeka kapena kugwiritsidwa ntchito kwa chilichonse. Maakaunti aulere alipo kwa mbiri ndi kukula kwa batani, osati kulowa.