Guqula JPEG ukuba JPG

Guqula Eyakho JPEG ukuba JPG iifayile ngokulula

Khetha iifayile zakho

*Iifayile zicinyiwe emva kweeyure ezingama-24

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

Iyalayisha

Indlela yokuguqula JPEG ukuba JPG

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

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

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

JPEG ukuba JPG Imibuzo Ebuzwa Rhoqo Ngokuguqula

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

Layisha phezulu ifayili yakho ye JPEG kwaye umguquli usebenzise ukuphuculwa komgangatho owaziyo ifomati ye JPG. Kwifomati engalahlikiyo JPG (PNG, TIFF, BMP) yonke i-pixel igcinwa; kwifomati elahlayo JPG (JPG, WebP) ungalungisa umgangatho phambi kokukhuphela. Uthungelwano lwee-bit lufana ne-.jpg: DCT-based lossy compression, ngokuqhelekileyo nge-4:2:0 chroma subsampling, olujikelezwe kwi-JFIF okanye kwi-Exif header. I-JPG ilahlekile: umfanekiso uguqulwa nge-DCT, i-quantized, kunye ne-entropiya-ekhowudiweyo, ngeqhosha lomgangatho elilawula ukuba kuphi okuninzi okulahlekileyo.

Ingaba uguqulelo JPEG ukuya ku JPG lugcina ukubonakala ngaphaya?

Ukubonakala ngaphaya kuqhubeka xa JPG yi-PNG, WebP, TIFF, GIF, okanye SVG. Ukutshintsha ukuba yi-JPG kwenza ukuba isiqhagamshelanisi se-alpha sifane nesiqalo esimhlophe. Ukuba ufuna ukubonakala ngaphaya kwiziphumo, cwangcisa ukubonakala ngaphaya okuziyo JPG endaweni ye-JPG=JPG. I-JPG yi-JPEG eqhelekileyo ukusukela ngo-1992, kwaye emva kweminyaka emithathu ihlala i-format esetyenziswa ziikhamera ezininzi kunye ne-web sites ezininzi zomfanekiso.

Yintoni malunga ne-EXIF metadata xa uguqula JPEG ukuya ku JPG?

Kwiziguqulelo ezininzi, iimayile ze-EXIF zekhamera ezinjengemodeli yekhamera kunye nendawo ye-GPS azithunyelwe kwi-JPG. Akukho mmiselo kule phepha ukugcina okanye ukususa i-metadata, ngoko khangela isiphumo ngombonisi we-metadata ukuba kubaluleke.

Ndingaguqula iifayili ezininzi JPEG zibe JPG ngaxeshanye?

Iifayile ezininzi kumsebenzi omnye zifuna inkqubo ehlawulweyo. Ukusetyenziswa okukhululekileyo yifayile enye ngoguqulelo, uguqulelo olunye ngeyure. Kwinkqubo ehlawulweyo ungadibanisa iifayile ezininzi kumsebenzi omnye, emva koko ulayishe impumelelo nganye kwiyo okanye zonke kwi ZIP enye.

I-JPG ifayile yam izakuba nesisombululo esingakanani?

Okumiselweyo yi-1:1 — i-JPG yakho igcina ubungakanani be-pixels yombhalo ovela ku-JPEG. Ukuba ufuna ukuguqula ubungakanani njengenxalenye yokuguqula, sebenzisa i-/resize-image/ emva kokuguqula, okanye uyibeke kwi-/image-resize/ utility.

Ingaba iifayile zam JPEG zifihlakeleyo ngexesha lokuguqulwa?

Ewe. Iifayile ezilayishwe phezulu ze JPEG ziqhubekekiswa kwiseva yethu yokuguqula, akukho mntu ujonge phezulu, kwaye azisasazwanga. Ukukhuphela kunye nokuguqulwa kwe JPG kususwa ngokuzenzekelayo malunga neyure ezili-24 emva kokuguqulwa, oshiya ixesha lokulayisha ezantsi iziphumo. Bona /privacy/ kwinkqubo epheleleyo.

Kutheni i-JPG yam eguqulweyo incinci okanye ikhulu kuneleyo ndiyifumeneyo?

A JPEG nge-compression enamandla ekhoyo (i-lossy JPG) ihlala ikhula xa i-encoded kwakhona kwi-lossless JPG (PNG, TIFF). I-lossless JPEG ihlala ikhula ngokugqithisileyo xa ihamba kwi-JPG / WebP. Uthelekiso luxhomekeke kwizinto eziqulethe umfanekiso — iifoto zicofa ngokuhlukileyo kunemizobo yelayini. I-JPEG ibelana ngazo zonke izithintelo ze-JPG — akukho lpha, ulahleko lokuzalwa kwi-re-save — kunye noxinzelelo oluthe kratya lwesoftware ephatha izithuba ezimbini ngokuhlukileyo. I-JPG ayinakubonakaliswa ngokucacileyo, ikhupha ngaphezulu xa igcinwa kwakhona, kwaye ivelisa ukutshixa okubonakalayo kumbala othambileyo nombhalo oqaqambileyo.

Ndingasebenzisa i-JPG eguqulweyo ngentengiso?

Ewe. Uguqulelo lutshintsho lwefomati - ilungelo lokushicilela kwimixholo yomfanekiso lihlala kuwe (okanye umntu ophetheyo kumgca womthombo JPEG). Sidibanisa akukho phawu lwamanzi, akukho phawu lwemetadata, kwaye sicela akukho layisensi ngaphezulu kwemveliso JPG.

JPEG

I-JPEG isebenzisa ucinezelo olulahlekileyo olulungiselelwe iifoto, ukulinganisela umgangatho kunye nobukhulu befayile.

JPG

Iifayili ze-JPG zisebenzisa ukucinezela okulahlekileyo okulungelelanisiweyo kwiimifanekiso, kunike ubungakanani befayili encinci ngelixa kugcinwa isisombululo esibonakalayo.