Mai Juyawa JPG zuwa PNG

Maida Naka JPG zuwa PNG fayiloli da wahala

Zaɓi fayilolinku

*An goge fayiloli bayan awanni 24

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Ana lodawa

Yadda ake canzawa JPG zuwa PNG

Mataki na 1: Loda naka JPG fayiloli ta amfani da maɓallin da ke sama ko ta hanyar ja da sauke su.

Mataki na 2: Danna maɓallin 'Maida' don fara hira.

Mataki na 3: Sauke fayil ɗin da aka canza PNG fayiloli

JPG zuwa PNG Tambayoyin da ake yawan yi game da Canzawa

Ta yaya zan canza JPG zuwa PNG ba tare da rasa ingancin hoton ba?

Ka shigar da fayil ɗinka JPG kuma mai maidamu zai yi amfani da inganta ingancin da ya dace da siffar fayil ɗinka ga fitarwa PNG. Ga burin da ba'a rasa ba (PNG, TIFF, BMP) ana kiyaye kowane piksel bit-da-bit; ga burin da aka rasa (JPG, WebP) zaka iya daidaita ma'aunin inganci (90 na asali) kafin ka sauke shi. JPG yana da asara: an canja hoton da DCT, an kwatanta shi, kuma an canza shi da entropiy-code, tare da wani maɓalli na ingancin da ke kula da adadin da aka manta. PNG na amfani da DEFLATE na ƙuntata kan scanlines masu siffantawa, don haka duk pixel na rayuwa daidai, tare da wani cikakken 8-bit alfa channel.

Shin zan iya samun haske idan hoton ya kasance PNG?

Format ɗin PNG yana goyon bayan shi, amma canjin ba zai iya ƙirƙirar shi ba. JPG ba ta da wani gidan rediyon alfa, don haka duk pixel ɗin da ke cikin bango yana zuwa da baƙin ciki. Run /removebackground/ afterwards to cut the subject out — then the alfa channel PNG provides something to store. PNG shi ne zaɓin da ya dace ga hotunan fuskar kwamfyuta, alamomin, zane-zane na layin da duk wani abu da ƙanƙanta ko ɓoyayyiyar ɓoyayyi

Shin musanya JPG zuwa PNG zai mayar da ingancin abin da aka rasa?

No. The compression artifacts already baked into the JPG are ordinary pixel data now, and PNG preserves them perfectly rather than removing them. The file usually gets larger, sometimes several times larger. It still worth doing before editing, because further edits will not stack a second generation of loss on top. JPG ba shi da cece-kuce, yana kara lalacewa duk lokacin da aka sake adana shi, kuma yana samar da wani ɓangare mai gani a kan launin da aka yi da kuma rubutu mai haske.

Shin launina na CMYK zai iya tsira daga canjin zuwa PNG?

An canja shi zuwa sRGB, saboda PNG ba shi da yanayin CMYK. Don amfanin fuskar kwamfyuta wannan shi ne abin da kake so. Don bugawa na kasuwanci ba shi da haka — canjin gamut na canza yadda launuka masu zafi ke sakewa a kan bugawa, don haka aika da marufin da asali JPG maimakon PNG. PNG wani nau'in hoto ne mai rauni: hoton da aka adana kamar PNG yana da girman sau biyar zuwa goma fiye da hoton da aka adana kamar JPG ko WebP.

Shin PNG na riƙe bayanan EXIF daga JPG na?

A matsayin diff, na'am, duk inda manufar take da wani wuri don sanya shi - nau'in kamara, daidaitattun nunawa, linzamin kwamfuta da GPS coordinates duk suna daukewa. GPS shine filin da ya cancanci tunani: idan hoton zai kasance an wallafa shi, amfani da zaɓin metadata-strip don haka ba ka daukewa inda hoton aka dauka. JPG shi ne tsarin JPEG daga 1992, kuma bayan shekaru goma shi ne har yanzu format mafi yawan kamara da mafi yawan shafukan yanar gizo suna amfani da su ga hotuna.

Shin canji daga JPG zuwa PNG zai kiyaye haske?

Haske zai ci gaba idan PNG ya kasance PNG, WebP, TIFF, GIF, ko SVG. Canja zuwa JPG zai sauya layin alfa zuwa bango mai fari — idan kana buƙatar haske, za ka iya zaɓar wani abu mai haske mai sani a matsayin PNG. An tsara PNG a cikin 1996 kamar wani mai mayewa mai kyautar patent ga GIF, kuma ya zama format na zane mai sauki na yanar gizo.

Shin siffar launina (sRGB / Adobe RGB / CMYK) za ta tsira daga JPG zuwa PNG?

An karanta siffofin launin ICC da aka rufe daga wurin asali JPG kuma aka sake haɗa su zuwa fitarwa PNG inda siffar ke goyon baya (JPG, PNG, TIFF, WebP). Siffofin da ba su da goyon bayan siffar suna komawa zuwa sRGB tare da mataki na tabbaci.

Me ke faruwa da metadata EXIF idan an canja JPG zuwa PNG?

An kiyaye EXIF na kamara (ISO, shutter, lens, GPS) bisa diff yayin JPG -> PNG idan nau'ikan biyu suna goyon bayan metadata. Yi amfani da toggle na sirri don cire metadata kafin sauke idan kana so ka raba hotuna ba tare da nuna wurin geolokaci ko na'urar-fingerprint ba.

Shin zan iya canja ɗaruruwan fayiloli JPG zuwa PNG a lokaci guda?

Na'am — ka drag da fayiloli JPG da yawa cikin yankin shigarwa kuma su zauna a cikin jerin gwano a daidai. Mataki na kyauta yana karɓar 100 MB ga kowace fayil; Premium ba shi da iyaka ga kowace fayil kuma yana tafiyar da masu aiki da yawa a daidai, don haka wani bangare na hotuna 200 na iya kammala cikin minti biyu.

Ta yaya JPG zuwa PNG ke bambanta da Photoshop / GIMP ga aikin guda ɗaya?

@ action

Mene ne ƙudurin da girman fayil PNG?

Halin diff shine 1:1 — fitarwa PNG tana da daidaitattun girman piksel kamar yadda wurin asali JPG. Idan kana buƙatar sake girman kamar wani ɓangare na canja wurin, ka yi amfani da /resize-image/ bayan, ko kuma ka haɗa ayyukan da kayan aiki na /image-pipeline/.

Yaya ƙaramin fayil PNG zai iya zama ba tare da artifacts masu gani ba?

Ga JPG / WebP, inganci 75-85 na da PNG 60-80% mafi ƙaranci daga JPG ba tare da bambanci mai gani ba a tsayin gani na yau da kullum. Ga PNG mara asara (PNG, TIFF), ka yi tsammanin adadin da za'a iya adana ya fi ƙaranci — a kan 5-30% ta hanyar ficewa / LZW mai ƙuntata fiye da abin da ma'anar ta kasance da shi.