Jikelezisa JPG

I-Free Online JPG Rotator

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Khetha Ujikelezo

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Iyalayisha

Indlela yokujika JPG

1 Layisha phezulu i JPG images eyaphuma ngendlela engafanelekanga.

2 Khetha umjikelezo wesiqendu okanye umjikelezo wesiqendu, okanye ubhale i-engile ekhethiweyo kwaye ukhethe umbala weekona eziza kubonisa.

3 Sebenzisa ujikelezo; ii-pixels neflegi yolawulo zidityaniswe ukuze wonke umbukeli avume ukuba yeyiphi indlela ephezulu.

4 Layisha ezantsi ifayili ejikelezayo JPG.

Jikelezisa JPG Imibuzo ebuzwa rhoqo

I Jikelezisa JPG ijikelezisa njani ifayili?

Ngokucacileyo, ujikelezo oluninzi lweeqondo ezili-90 luyakwenziwa ngaphandle kolahleko ngokudlulisa iibhloko ze-DCT - akukho kuphinda kukhowudi, akukho kuphinda kulahleko; i-engile ekhethiweyo kuphela efuna ukusampuluswa, kuba i-pixel grid ngokwayo kufuneka iphinde. Iindawo ezijikelezayo zekota kunye neepesenti zojikelezo ziyimeko eqhelekileyo kwaye zithathe indlela ebiza kakhulu efumanekayo kwifomati.

Ndingajikelezisa ngee-engile ezingenakulinganiswa, hayi kuphela amaqondo angama-90?

Ewe, nangona ezimbini zisebenza ngokuhlukileyo ezantsi. Uphinda- phindo lwe 90 amaqondo acwangcisa kwakhona i data ekhoyo; nayiphi na enye i engile kufuneka iphinde i

Ingaba ifomati igqiba ukuba ujikelezo alulahleki?

Iyenza. I-JPG igcina i-8-bit RGB idlula kwi-DCT elahlekile ene-4:2:0 chroma subsampleing ngokumiselweyo, ngoko umbhalo omnyama olungileyo kunye nemiphetho eqinileyo zizinto zokuqala zokuncamathela. Le mpahla igqiba ukuba ijikelezo lekota likhululekile okanye libiza ukubuyisela ikhowudi.

Nantoni na ekhethekileyo kwi JPG ekufuneka ndiyazi?

Ewe — Yonke i-save iphinde iqhube i-quantiser, ngoko ukuhlela kwakhona nokugcina kwakhona i-JPG kudibanisa ukulimala kokwenza nokuba awunakunyusa umgca wokutyibiliza womgangatho. Yinto echaza ukuba kutheni ifayile ibonakale ilungile kwisicelo esithile kwaye ingalunganga kwisinye.

Kutheni ifayile yam ibonakale ilungile kwifowuni yam kodwa ijikeleze ngaphaya kwezinye iindawo?

Kuba ubeko lugcinwa njenge-EXIF flag kunokuba lugcinwe kwii-pixels, kwaye akukho mntu wonke obonakeleyo uyamhlonipha. Ukujikeleza apha kuyenza ibonakale ilungile - ii-pixels ne-flag zigqiba ekubeni zivumelane, ngoko ke ifayile ibonakala ifana naphi na.

Ndingajikelezisa iqela elipheleleyo kwindlela enye?

Ewe. Ujikelezo olufanayo lusetyenziswa kwifayile nganye olayishe kuyo, eyiyo inkqubo esebenzayo yokulungisa ifayile ye scans okanye ikhamera yemveliso esuka kwindlela engalunganga.

Yintoni endinokuyilayisha kwi Jikelezisa JPG?

Nantoni na ekufumaneni usapho lwe-raster - JPG, JPEG, JFIF ne-WebP - kunye neefomati ezingalunganga (PNG, BMP, TIFF) ukuba ufuna ukuzidibanisa kwiqela elinye. Ifomati ifundwa kwisihloko sefayili, hayi kwisiphelo, ngoko ke umfanekiso ogciniweyo nge-suffix engafanelekanga uhlala udlula.

Ingaba kukho umda wobungakanani befayili kwi Jikelezisa JPG?

Ewe: i-akhawunti ekhululekileyo iqhubekeka imifanekiso ukuya kwi-5 MB nganye, equka ngokucacileyo yonke ikhamera ye-JPG kunye nefowuni yomfanekiso; umsebenzi ukwenziwa yi-libjpeg-turbo ne-libwebp, iilayibrari ezifanayo umhleli we-desktop uqhagamshelana nazo. Iifayili ezinkulu zizinto ezi-1 ezimfutshane ezikhululekileyo eziza kukuthintela, kwaye umda yifayili nganye kunokuba yiqela ngalinye.

Ingaba i Jikelezisa JPG iya kunyusa ubunjani be JPG images yam?

Umthombo olahlwayo sele uyimpumelelo yendlela enye yokugqitha, kwaye nayiphi na imisebenzi efuna ukubuyisela ikhowudi idibanisa enye. Xa umsebenzi ungakwenziwa ngaphandle kokucofa i-pixel data siyenza endaweni, kwaye apho ayikwazi khona ukhetha umgangatho wezinto ozithandayo ngokwakho kunokuba ufumana okumiselweyo okumiselweyo.

Ndingaqhuba i Jikelezisa JPG kwi JPG images ezininzi ngaxeshanye?

Ewe. Nciphisa iqela lonke kwindawo yolayisho phezulu kwaye ziphole ngokuthe ngqo ngemimiselo efana nayo - le yisizathu esiphambili sokwenza oku kumkhangeli zincwadi kunokuba yifayile enye ngexesha kumhleli. Iiakhawunti ezikhululekileyo ziqhuba ifayile enye kwiqela; ugqithiso luyikhupha loo nto.

Ithini into ebangela ukuba i-EXIF ne-data yeprofayili yombala isebenze?

Ikhamera EXIF (ISO, i-shutter, i-lens, i-GPS) kunye ne-ICC efakwe kwiprofayili idluliselwa ngokumiselweyo, kuba ukulahla iprofayili kwenza umbala utshintshe xa uphinda urhweba ngaphakathi. Sebenzisa ukhetho lokhuseleko lokucoca i-metadata phambi kokukhuphela ukuba ujonge ukupapasha ifayili.

Ingaba i Jikelezisa JPG ibiza nantoni na?

Umhlathi Jikelezisa JPG ukhululekile ngaphandle kwe-akhawunti, akukho phawu lwamanzi kwimveliso kwaye akukho mnatha wobhaliso phambi kokukhuphela. Ukukhuphela kususwa ngokuzenzekelayo ngexesha elifutshane emva kokuba umsebenzi ugqibile.