Tshintsha ubungakanani JPG

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Indlela yokuguqula ubungakanani JPG

1 Layisha phezulu i JPG images ofuna ukuyiguqula ubungakanani bayo - sebenze ukusuka kwi-original enkulu onayo kunokuba usebenze kwikopi esele uyincinane.

2 Ngenisa ububanzi obumiselweyo, ubude obumiselweyo okanye iphesenti, kwaye ushiye isitshixo sothelekiso lwezinto ezibonakalayo sisebenza ngaphandle kokuba ufuna ukutsala ngokuzithemba.

3 Sebenzisa ubungakanani kwakhona; ifayile nganye kwiqela lithathwa kwinjongo efanayo kwindlela enye.

4 Layisha ezantsi ifayili eguqulwe kancinane JPG, okanye iseti yonke kunye njengendawo yokugcina enye.

Tshintsha ubungakanani JPG Imibuzo ebuzwa rhoqo

Ingaba ifomati yombhalo inegalelo kwiziphumo zotshintsho lobungakanani?

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. Oku kugqiba ukuba uxinzelelo lwefayile luyingxaki ye pixels kuphela okanye ingxaki yokubuyisela ukukhowuda.

Ingaba kukho into ekhethekileyo kwi JPG endimele ndiyijonge?

Ewe — Yonke i-save iphinde iqhube i-quantiser, ngoko ukuhlela kwakhona nokugcina kwakhona i-JPG kudibanisa ukulimala kokwenza nokuba awunakunyusa umgca wokutyibiliza womgangatho. Kufuneka ujonge phambi kokuba utshintshe ubungakanani befayili oza kukwazi ukuyibuyisela kwakhona.

I Tshintsha ubungakanani JPG itshintsha njani iimfuno?

Ngokucacileyo, Umfanekiso uphinda uthathwe ngesihluzi se Lanczos kwaye emva koko uphinde ukhowudiwe, oko kuthetha ukuba ubungakanani obutsha buphinda bucinezelwe kwakhona - ngoko yenza kabini ukusuka kukuqala okukhulu onalo kunokuba uyenze kwinqanaba. Unika ububanzi obumiselweyo, ubude obumiselweyo okanye iphesenti, kwaye isebenza ukusuka kukuqala kunokuba ukusuka kwikopi eyenziwe ukuba ibe mkhulu ngaphambili.

Ndingagcina njani uthelekiso lwezinto ezibonakalayo, okanye ndivumele ubungakanani obuchanekileyo?

Zonke ezimbini. Tshixa uthelekiso kwaye ubungakanani obunye buvela kwelinye, ekufuneka uyenze rhoqo. Tshixa kwaye ufumane amanani athile obhale kuwo, ngexabiso lokutsala - luncedo kwisisombululo esithe nkqo, olungachanekanga kumfanekiso.

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 lokususa i-metadata phambi kokukhuphela ukuba ujongene nokupapasha ifayili.

Yintoni endinokuyilayisha kwi Tshintsha ubungakanani 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 Tshintsha ubungakanani 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 Tshintsha ubungakanani 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.

Kutheni i-site ekwifomati entsha iqhuba Tshintsha ubungakanani JPG?

WEBP.to ibekwe phantsi kotshintsho olutsha lwezo zombini iinkqubo ezingagqibekanga: ifomati enye eyenza ilahlekile, engalahleki, i-alpha kunye nobuchule, kwaye ihlala incinci kune-JPEG okanye i-PNG eyavela kuyo. Abantu bafika apha begqibe ukuba iimfuno eziqhelekileyo zakudala zibiza ibhandewidth, kwaye loo sinqumo sikhupha ngokuzenzekelayo isiphelo: ubungakanani obunjani, umgangatho onjani, into eyenza ukuba ibonakale. Tshintsha ubungakanani JPG ikwi-upload efanayo ne-akhawunti efanayo ukuze ezo mibuzo ziphendulwe kwindawo enye.

Xa i Tshintsha ubungakanani JPG iphumeze, yintoni ekufuneka yenziwe emva koko?

Umguquli kule ndawo uhambisa imifanekiso ukuya nakwi WebP, PNG, JPG ne AVIF, apho ugqiba khona ukuba ifayile encinci ifanele ilahle iiseva ezidala. Ukwenza oku ngokulandelana okubalulekileyo: khetha ii-pixels kuqala kwaye isiqulathi-zifayili emva koko, kuba isiqulathi-zifayili sigqibo esiphantsi kwaye ii-pixels zibiza kakhulu.

Ingaba iinxuwa ezifanayo ziqhuba into eyahlukileyo?

Iinjini zifana - iilayibrari ezifanayo, abasebenzi abafanayo, iziqhoboshi ezifanayo. Okuhlukileyo kumbono odityanisiweyo, kwaye umbono apha uhlala kwipropathi yefomati le ndawo ibizwa emva: i-.webp efana ne-extension ingagcina i-VP8 frame elahlekile, enye engalahlekiyo, okanye udweliso, ngoko ke indlela yokusebenza efanelekileyo igqibwa ngefayili nganye kunokuba yi-extension nganye.

Yintoni eyenza ifayili yam, kwaye ngaba i-akhawunti ifuneka?

Akukho akhawunti, kwaye akukho nto igcinwa: ulayisho lususwa abasebenziyo emva komsebenzi ugqiba, kwaye akukho nto ivavanywa, idweliswe okanye iqulathe isalathisi. Iiakhawunti zikhona kuphela kwimbali kunye nobungakanani beqela.