Guqula JPEG ukuba PSD

Guqula Eyakho JPEG ukuba PSD amaxwebhu 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 JPEG ukuba PSD

Inyathelo 1: Rhweba ngaphakathi JPEG iifayili usebenzisa iqhosha phezulu okanye nge shift nendawo.

Inyathelo 2: Nqakraza kwiqhosha 'Uguqulo' ukuqala uguqulo.

Inyathelo 3: Gcina ifayile yakho eguqulweyo PSD iifayile

JPEG ukuba PSD Imibuzo Ebuzwa Rhoqo Ngokuguqula

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

Layisha phezulu ifayili yakho ye JPEG, emva koko umguquli wethu usebenzise ukuphuculwa komgangatho owaziyo-fomati yemveliso ye PSD. Iifomati ezingalahlekiyo (PNG, TIFF, BMP) sigcina zonke ii-pixels; iifomati ezilahlekiyo (JPG, WebP) ungalungisa isizathu somgangatho phambi kokukhuphela.

Ingaba ukuguqulwa kwe-JPEG ukuya kwi-PSD kugcina ukubonakala ngaphaya?

Ukubonakala ngaphaya kuqhubeka xa usiya kwi-PNG, WebP, TIFF, GIF okanye SVG. Ukutshintsha kwi-JPG kugubungela isiqhagamshelanisi se-alpha phantsi kokungasemva omhlophe — ukuba ufuna ukubonakala ngaphaya, cwangcisa ifomati eyaziyo ukubonakala ngaphaya endaweni ye-PSD.

Ingaba i-inkangeleko yam yombala (sRGB / Adobe RGB / CMYK) iya kuqhubeka iphila JPEG ukuya kwi-PSD?

Iiprofayili zombala we-ICC ezifakelweyo zifundwa kumvelaphi JPEG kwaye zidityaniswe kwakhona kwi-PSD output apho ifomati ixhasa khona (JPG, PNG, TIFF, WebP). Iifomati ezingaxhaswanga zibuyela umva kwi-sRGB.

Yintoni malunga ne-EXIF metadata xa uguqula i-JPEG ukuya kwi-PSD?

I-EXIF yekhamera (ISO, i-shutter, i-lens, i-GPS) igcinwa ngokumiselweyo ngexesha lokuguqulwa kwe-JPEG → PSD xa zombini iifayili zixhasa i-metadata. Sebenzisa ukhetho lobumfihlo ukususa i-metadata phambi kokukhuphela ukuba ufuna ukuthumela imifanekiso ngaphandle kolwazi lwendawo.

Ndingaguqula iimawaka eefayili ze-JPEG zibe yi-PSD ngaxeshanye?

Ewe — tsala iifayile ezininzi ze JPEG kwindawo yokulayisha kwaye sizibeke kwifolokhwe ngokuthe tye. Abasebenzisi abakhululekileyo bafumana i-100MB ngefayili nganye; i-Premium ayinasiphelo sefayili nganye kwaye iqhuba abasebenzi abathe tye abaninzi, ngoko ke iqela lemifanekiso engama-200 ligqiba ngaphantsi kwemizuzu emibini.

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

Uguqulelo lwefomati olulula siqhuba i libpng / libjpeg- turbo / libwebp / ImageMagick imibhobho efanayo umhleli we desktop usebenzisa, ngexabiso elifanayo. Utshintsho luyizinto ze desktop zivula ifayile enye ngexesha; siyamkela iqela kwaye siqhuba ngokuthe tye.

Yintoni isisombululo kunye nemilinganiselo yefayili yam ye-PSD?

Ukuziphatha okungagqibekanga kuku-1:1 — i-PSD yakho ivelisa i-pixels ezilinganayo njenge-JPEG. Ukuba ufuna ukuguqula ubungakanani njengenxalenye yokuguqula, sebenzisa i-/resize-image/ isixhobo emva kokuguqula, okanye uyibeke kwi-/image-resize/ utility.

Ingaba incinci kangakanani ifayili ye-PSD ngaphandle kwee-artifacts ezibonakalayo?

Kwi-JPG / WebP, umgangatho we-75-85 ufumana ifayili i-60-80% incinane kune-JPEG engenamlinganiselo obonakalayo kumgama wokujonga oqhelekileyo. Kwiinjongo ezingalahlekiyo (PNG, TIFF), lindele ukonga okuncinci — ngokuqhelekileyo 5-30% nge-deflate / LZW yokucinezela engcono.

Ingaba iifayile zam ze-JPEG zifihlakeleyo ngexesha lokuguqulwa?

Ewe — iifayile ezilayishwe phezulu ze JPEG ziqhubekekiswa kubasebenzi abakhethekileyo kwaye zicinywe kwimizuzu. Asizukufunda, sigcine, okanye sisebenzise i-pixel data. Inkqubo yobumfihlo obupheleleyo kunye nefestile yokugcina ibhalwe kwi /privacy/.

Ingaba i-JPEG ukuya kwi-PSD iguqulela isebenza kwimifanekiso emikhulu kakhulu (50MP+)?

Ewe, simahla ukuya kwi-100MB. I-Premium iphatha izingeniso ezinkulu (300MB+) kunye nobunzulu obukhethekileyo kwi-pixel nganye (16-bit PNG, 32-bit float TIFF). I-pipeline isasaza imiqolo ye-pixel, ngoko ke ukusetyenziswa kwememori kulinganiselwa ngobalo lomqolo hayi ngobalo lwe-pixel jikelele.

Kutheni ifayili yam eguqulweyo PSD incinci/ikhulu kuneleyo ndiyifumeneyo?

Ifayili ye-JPEG enesicitho esinamandla (umzekelo, i-JPG enesicitho esiphezulu) ihlala ikhula xa iphinde ikhowudiwe ibe yi-PSD (PNG, TIFF) engenasicitho, kwaye i-JPEG enesicitho esiphezulu se-bitrate ihlala incinci kakhulu xa ihamba kwi-JPG/WebP. Uthelekiso luxhomekeke kwizinto eziqulethe umfanekiso (iifoto zicitha ngokuhlukileyo kunemizobo yelayini).

Ndingayisebenzisa ifayili eguqulweyo PSD ngemali?

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.

JPEG

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

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.