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 WebP fayiloli
JPG zuwa WebP Tambayoyin da ake yawan yi game da Canzawa
Ta yaya zan canza JPG zuwa WebP ba tare da rasa ingancin hoton ba?
+
Ka shigar da fayil ɗinka JPG kuma mai maida zai yi amfani da inganta ingancin da ya dace da siffar WebP. Ga WebP mara asara (PNG, TIFF, BMP) ana kiyaye duk piksel; ga WebP mai asara (JPG, WebP) zaka iya daidaita ma'aunin inganci 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. WebP na ba da hanyoyi biyu masu asara da ba-da-hasara, tare da alfa cece-kuce da motsi da ke da amfani a cikin kowanne.
Shin zan iya samun haske idan hoton ya kasance WebP?
+
Format ɗin WebP 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 WebP provides something to store. WebP yana da 25-35% kaɗan fiye da JPG mai daidaitawa kuma yana da kaɗan fiye da GIF mai motsi, tare da goyon bayan mai bincike na duniya tun daga 2020.
Shin launina na CMYK zai iya tsira daga canjin zuwa WebP?
+
An canja shi zuwa sRGB, saboda WebP 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 WebP. WebP har yanzu yana da darasi na biyu a waje na mai bincike - shirye-shiryen aiki na bugawa, da manyan gine-ginen ofishin da wasu galere na wayar ba su yarda da shi ba.
Shin WebP 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 WebP zai kiyaye haske?
+
Haske zai ci gaba idan WebP ya kasance PNG, WebP, TIFF, GIF, ko SVG. Canja zuwa JPG zai sauya layin alfa zuwa bango mai fari. Idan kana buƙatar haske a cikin sakamakon, to, ka yi niyya ga WebP mai haske mai sani a matsayin WebP=JPG. WebP ne Google na 2010 image format, gina daga VP8 keyframe encoder da kuma nufin su maye gurbin JPG, PNG da GIF a lokaci guda.
Shin siffar launina (sRGB / Adobe RGB / CMYK) za ta tsira daga JPG zuwa WebP?
+
An karanta siffofin launin ICC da aka rufe daga JPG kuma an sake haɗa su zuwa fitarwa WebP inda siffar ke goyon baya (JPG, PNG, TIFF, WebP). Siffofin da ba su da goyon bayan siffar suna komawa zuwa sRGB, wanda ke kiyaye launuka daidai a kan mafi yawan fuskokin nunawa na zamani.
Me ya faru game da metadata EXIF yayin canja JPG zuwa WebP?
+
An kiyaye EXIF na kamara (ISO, shutter, lens, GPS coords) bisa diff yayin JPG → WebP idan nau'ikan biyu suna goyon bayan metadata. Yi amfani da zaɓin sirri don cire metadata kafin sauke idan kana buƙatar raba hotuna ba tare da wurin geolokaci ba.
Shin zan iya canja fayiloli JPG da yawa zuwa WebP a lokaci guda?
+
Na'am — ka ja fayiloli JPG da yawa cikin yankin shigarwa kuma mu sanya su cikin jerin gwano a daidai. Masu amfani da kyauta suna samun 100 MB ga kowace fayil; Premium ba ta da iyaka ga kowace fayil kuma tana tafiyar da wasu masu aiki a daidai, don haka wani bangare na hotuna 200 na iya kammala cikin minti biyu.
Ta yaya JPG zuwa WebP ke bambanta da Photoshop / GIMP ga aikin guda ɗaya?
+
Domin canja siffar kai tsaye muna tafiyar da irin libpng / libjpeg-turbo / libwebp / ImageMagick da mai sarrafa kwamfyutan tebur ke amfani da shi, tare da ingancin fitarwa guda. bambancin shine sarrafa kwasfa mai daidaituwa — shiri-shiri na kwamfyutan tebur suna buɗe fayil ɗaya a lokaci; muna karɓar kwasfa.
Mene ne ma'anar fayil WebP na?
+
Diff ɗin shi ne 1:1 — WebP ɗinka na riƙe da girman piksel na wurin asali JPG. Idan kana buƙatar canza girman kamar wani ɓangare na canja wurin, ka yi amfani da /resize-image/ bayan canja wurin, ko kuma ka haɗa shi da kayan aikin /image-resize/.
Yaya ƙaramin WebP zai iya zama ba tare da artifacts masu gani ba?
+
Ga JPG / WebP, inganci 75-85 na iya samun WebP 60-80% mafi ƙaranci daga JPG ba tare da bambanci mai gani ba a tsayin gani na yau da kullum. Ga WebP 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 kyau.
Shin fayilolina JPG na sirri ne yayin canjawa?
+
Na'am — an yi aiki da fayilolin JPG da aka tura a cikin masu aiki masu tsalle-tsalle kuma an share su cikin minti. Ba za mu karanta, adana ko raba bayanan piksel ba. An yi takardar takaddun tagar tsare-tsaren a /privacy/.
