Guqula JPG ukuba PSD

Guqula Eyakho JPG ukuba PSD iifayile ngokulula

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Guqula iifayile ezifikelela kwi-1 GB simahla, abasebenzisi bePro banokuguqula iifayile ezifikelela kwi-100 GB; Bhalisa ngoku

Iyalayisha

Indlela yokuguqula JPG ukuba PSD

Inyathelo 1: Layisha eyakho JPG iifayile usebenzisa iqhosha elingasentla okanye ngokutsala nokuwisa.

Inyathelo lesi-2: Cofa iqhosha elithi 'Guqula' ukuze uqalise ukuguqula.

Inyathelo lesi-3: Khuphela i-converted yakho PSD iifayile

JPG ukuba PSD Imibuzo Ebuzwa Rhoqo Ngokuguqula

Ndiyiguqula njani i-JPG ibe yi-PSD ngaphandle kokulahlekelwa umgangatho womfanekiso?

Layisha phezulu ifayili yakho ye JPG kwaye umguquli wethu usebenzise ukuphuculwa komgangatho owaziyo ifomati ye PSD imveliso. Kwiinjongo ezingalahlekiyo (PNG, TIFF, BMP) yonke i-pixel igcinwa nge-bit-per-bit; kwiinjongo ezilahlekiyo (JPG, WebP) ungalungisa isizathu somgangatho (okungagqibekanga 90) phambi kokukhuphela. I-JPG ilahlekile: umfanekiso uguqulwa nge-DCT, i-quantized, kunye ne-entropiya-ekhowudiweyo, ngeqhosha lomgangatho elilawula ukuba kuphi okuninzi okulahlekileyo. I-PSD igcina amanqanaba, izigqubuthelo, iindlela zokudibanisa, izinto ezizimeleyo, amanqanaba olungiso nombhalo ohlelayo njengezinto eziphilayo ezihlukileyo.

Ndingafumana ukubonakala okucacileyo xa umfanekiso u PSD?

Ifomati PSD ixhasa oku, kodwa uguqulelo alukwazi ukulivelisa. A JPG ayinasiqhagamshelanisi se-alpha, ngoko ke yonke i-pixel equka indawo yangasemva ifika icacile ngokupheleleyo. Phumeza /susa indawo yangasemva/ emva koko ukucima isiqalo — ngoko i-alpha isiqhagamshelanisi PSD ibonelela ngento yokugcinwa. I-PSD igcina yonke intlawulo yokulungisa ebuyiselweyo, nto leyo eyenza ukuba ibe yifomati yomphathi woyilo lwemisebenzi eza kuvavanywa.

Ingaba ukutshintsha JPG ukuya ku PSD kubuyisela ubunjani obulahlekileyo?

Hayi. Ii-artefacts zokucinezela eziphekwe kwi JPG zii-pixels zedata eziqhelekileyo ngoku, kwaye PSD igcina kakuhle kunokuba isuse. Ifayile ihlala ikhula, ngamanye amaxesha ikhula amaxesha amaninzi. Kubalulekile ukwenza phambi kohlela, kuba utshintsho oluthe kratya aluyi kunyusa udidi lwesibini lolahleko phezulu. I-JPG ayinakubonakaliswa ngokucacileyo, ikhupha ngaphezulu xa igcinwa kwakhona, kwaye ivelisa ukutshixa okubonakalayo kumbala othambileyo nombhalo oqaqambileyo.

Ingaba i PSD igcina i-EXIF data evela kum JPG?

Ngokungagqibekanga ewe, apho naphi na apho injongo ifuna ukubekwa khona - imodeli yekhamera, izicwangciso zokubonisa, iinwele kunye neGPS ikhowudi zihamba zonke. I-GPS yindawo efanele ucinga ngayo: ukuba umfanekiso uzakupapashwa, sebenzisa ukhetho lwe-strip-metadata ukuze ungasazibonisi apho umfanekiso uthathwe khona. I-JPG yi-JPEG eqhelekileyo ukusukela ngo-1992, kwaye emva kweminyaka emithathu ihlala i-format esetyenziswa ziikhamera ezininzi kunye ne-web sites ezininzi zomfanekiso.

Ingaba uguqulelo JPG ukuya ku PSD lugcina ukubonakala ngaphaya?

Ukubonakala ngaphaya kuqhubeka xa PSD yi-PNG, WebP, TIFF, GIF, okanye SVG. Ukutshintsha ukuba yi-JPG kwenza ukuba isiqhagamshelanisi se-alpha sifane nesiqalo esimhlophe — ukuba ufuna ukubonakala ngaphaya, khetha isiphelo esizimelayo esibonisa ngaphaya endaweni ye-PSD. I-PSD yi-Adobe Photoshop yoxwebhu oluvela kwelinye ilizwe, kwaye yifayili esebenza ngakumbi kunefomati yonikezelo.

Ingaba i-inkangeleko yam yombala (sRGB / Adobe RGB / CMYK) iya kuhlala i JPG ukuya ku PSD?

Iiprofayili zombala we-ICC ezifakelweyo zifundwa kumvelaphi JPG kwaye zidityaniswe kwakhona kwi-PSD yemveliso apho ifomati ixhasa khona (JPG, PNG, TIFF, WebP). Iifomati ezingaxhaswanga yiprofayili zibuyela kwi-sRGB ngenyathelo elilula lokuqinisekiswa.

Ithini into ebangela ukuba i-EXIF metadata iguqulwe JPG ibe yi PSD?

I-EXIF yekhamera (ISO, i-shutter, i-lens, i-GPS) igcinwa ngokumiselweyo ngexesha JPG -> PSD xa zombini iifayili zixhasa i-metadata. Sebenzisa utshintshi lobumfihlo ukususa i-metadata phambi kokukhuphela ukuba ufuna ukuthumela imifanekiso ngaphandle kokubekwa kwendawo okanye ukubonisa umnwe wesixhobo.

Ndingaguqula izigidi zeefayili JPG zibe PSD ngaxeshanye?

Ewe - rhuqa iifayile ezininzi JPG kwindawo yokulayisha kwaye zifolole ngokuthe tye. Umphakamo osimahla uyamkela i-100 MB ngefayili nganye; i-Premium ayinasiphelo sefayili nganye kwaye iqhuba abasebenzi abathe tye abaninzi, ngoko ke iqela lemifanekiso engama-200 ligqiba ngaphantsi kwemizuzu emibini.

I-JPG ukuya kwi-PSD ithelekiswa njani ne-Photoshop / i-GIMP kumsebenzi ofanayo?

Uguqulelo lwefomati olulula siqhuba i libpng / libjpeg- turbo / libwebp / ImageMagick imibhobho efanayo umhleli we desktop asebenzisayo, kwi umgangatho ofanayo. Utshintsho kukuba izixhobo ze desktop zivula ifayile enye ngexesha; siyamkela iqela kwaye siqhuba ngokuthe tye kwiseva- ecaleni kwabasebenzayo.

I-PSD iifayili zinee-resolutions kunye nemilinganiselo eziphi?

Ukuziphatha okungagqibekanga kuku 1:1 — i-PSD yakho yemveliso inezinto ezilinganayo ze-pixels njenge-JPG. Ukuba ufuna ukuguqula ubungakanani njengenxalenye yokuguqula, sebenzisa /resize-image/ emva, okanye ubeke iinzame kwi- /image-pipeline/ utility.

Ingaba i PSD ifayili incinane kangakanani na ukuba ayinazo izinto ezibonakalayo ezibonakalayo?

Kwi-JPG / WebP, umgangatho we-75-85 uhlala uvelisa i-PSD 60-80% encinci kune-JPG ngaphandle kotshintsho olubonakalayo kumgama wokujonga oqhelekileyo. Kwi-PSD engenanto (PNG, TIFF), lindele ukonga okuncinci — ngokuqhelekileyo 5-30% nge-deflate / LZW yokucinezela engcono kuneleyo umboneleli sele uneyo.

Ingaba iifayile zam JPG zifihlakeleyo ngexesha lokuguqulwa?

Ewe — iifayile ezilayishwe phezulu JPG ziqhubekekiswa kubasebenzi abakhethekileyo kwaye zicinywe kwimizuzu. Asizukufunda, sigcine, okanye sisebenzise i-pixel data. Ifestile yokugcina epheleleyo ibhalwe kwi /privacy/.

JPG

Iifayili ze-JPG zisebenzisa ukucinezela okulahlekileyo okulungelelanisiweyo kwiimifanekiso, zibonisa ubungakanani befayili encinci ngelixa zigcina inqanaba elibonakalayo.

PSD

I-PSD (uXwebhu lwePhotoshop) yifomathi yefayile yemveli ye-Adobe Photoshop. Iifayile ze-PSD zigcina imifanekiso enamaleko, nto leyo evumela ukuhlela okungonakalisiyo nokugcina izinto zoyilo. Zibaluleke kakhulu kuyilo lwemizobo yobungcali kunye nolawulo lweefoto.