Ukusika JPG

I-Free Online JPG Cropper

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*Iifayile zicinyiwe emva kweeyure ezingama-24

Ukhetho

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Iyalayisha

Indlela yokujika JPG

1 Layisha phezulu i JPG images yakho uze ulinde ukujonga phambi koshicilelo ukuba kuvele.

2 Rhuqa ngaphandle ummandla ofuna ukuwugcina, okanye utshixe ukhetho kwi 1:1, 4:3 okanye 16:9 kwaye urhoxise ngokukhululekileyo ngaphakathi kolu hlobo loqhagamshelwano.

3 Qinisekisa ukutywina - i-rectangle efanayo isetyenziswe kwifayile nganye olayishe kuyo, oko kukuthi indlela emiselweyo ephelela ngokuhambelana ngokuqinisekileyo.

4 Layisha ezantsi ifayili ecutiweyo JPG, ngazo zonke izinto ezingaphandle kwesakhelo ezilahlekileyo.

Ukusika JPG Imibuzo ebuzwa rhoqo

I-Ukusika JPG ikhetha kwaye icima indawo njani?

Ngokucacileyo, i-crop isetyenziswe kumfanekiso oguqulwe kwikhowudi kwaye i-result iphinde ikhowudiwe, ngoko ibiza udidi olunye; apho i-crop iqala khona ukuwela kuma-8-pixel MCU ama-boundaries i-encoder ingagcina i-original blocks kwaye ixabiso liphela. Urhoxisa ummandla ofuna ukuwubona ngokuthe ngqo kwimboniselo, okanye ubhale ngokuchanekileyo i-pixels ezihambelanayo ukuba sele uyazi.

Ndingatyhila njani i-aspect ratio?

Ewe. Tshixa ukhetho kwi 1:1, 4:3, 16:9 okanye nayiphi na i-ratio eyenziwe ngokwezifiso kwaye urhoxise ngokukhululekileyo ngaphakathi kolu xinzelelo - oko kukuthi, ufumana iseti yemifanekiso elungele zonke i-slot yobeko olufanayo ngaphandle kokulinganisela nantoni na.

Ingaba ifomati yam yombhalo itshintsha indlela eziphatha ngayo i-crop?

It can. 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. That decides whether the crop is a pure pixel operation or whether the file has to be rebuilt around it.

Nantoni na ekhethekileyo kwi JPG ekufuneka ikwazi phambi kokuba ndityhale?

Ewe — Yonke i-save iphinde iqhube i-quantiser, ngoko ukuhlela kwakhona nokugcina kwakhona i-JPG kudibanisa ukulimala kokwenza nokuba awunakunyusa umgca wokutyibiliza womgangatho. Loluhlobo lweenkcukacha ezibonisa kuphela emva kokuba ubhale ngaphezulu okubhaliweyo okubhaliweyo.

Yintoni impazamo eqhelekileyo xa uqhagamshela JPG images?

Ukutywina phambi kokwenza ubungakanani kwakhona. Tywina kuqala ukusuka kwi-resolution epheleleyo ebonakalayo, emva koko uguqule ubungakanani besabelo - ukwenza oku kujikeleza kuthetha ukuba ummandla ogcinayo sele ulahlekile inkcukacha ayifuni ukulahleka.

Ndingazicima iifayili ezininzi kummandla ofanayo ngexesha elinye?

Ewe, kwaye le yimeko efanelekileyo yokwenza apha kunokuba kumhleli: i-rectangle efanayo isetyenziswe kwiqela, eyiyo indlela eqela lemveliso eliqhutywa liphele ngokuqinisekileyo lihambelana endaweni yokuhambelana ngokufutshane.

Yintoni endinokuyilayisha kwi Ukusika 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 Ukusika JPG?

Ewe: i-akhawunti ekhululekileyo iqhubekeka imifanekiso ukuya kwi-25 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 Ukusika 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 Ukusika 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 Ukusika JPG ibiza nantoni na?

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