Nɔnɔmetatawo Ðeɖe Nu Nyuitɔ Kekeake

Nɔnɔmetatawo ƒe Nutete ƒe Gɔmeɖosewo Gɔmesese

Nɔnɔmetatawo ƒe nutete nye alesi woɖea faɛl ƒe lolome dzi kpɔtɔna esime woléa nukpɔkpɔ ƒe nyonyome si dzi woda asi ɖo me ɖe asi. Wole ƒomevi vevi eve: lossy compression, si ɖea nɔnɔmetata ŋuti nyatakaka aɖewo ɖa tegbee be woakpɔ faɛl suewo, kple lossless compression, si ɖea faɛl ƒe lolome dzi kpɔtɔna evɔ eƒe nyonyome mebu o. Vovototo sia gɔmesese le vevie ŋutɔ na nutetemɔnu nyuitɔ tiatia na wò hiahiã tɔxɛwo. Tiatia si nàwɔ le nutete si me bu kple esi mebu o dome nɔ te ɖe alesi nèdi be yeazã wò nɔnɔmetata dzi. Nusiwo bu abe JPEG ene sɔ nyuie na foto siwo me woɖea woƒe nyonyome dzi kpɔtɔna vie le tsɔ ɖɔa li faɛl ƒe lolome siwo le sue ŋutɔ. Nusiwo mebu o abe PNG ene nyo wu na nɔnɔmetata siwo ƒe go ɖaɖɛ, nuŋɔŋlɔ, alo ne ehiã be nàdzra nu ɖesiaɖe ɖo tsitotsito. WEBP naa nusiwo bu kple esiwo me bu mele o siaa, si wɔe be wòva le bɔbɔm ɖe nyatakakadzraɖoƒe dɔwɔɖoɖowo me. Wodzidzea nutete ƒe dɔwɔwɔ nyuie to dadasɔ si le faɛl ƒe lolome dzi ɖeɖe kpɔtɔ kple nukpɔkpɔ ƒe nyonyome léle ɖe te dome. Egbegbe nutete ƒe mɔnuwo zãa mɔnu deŋgɔwo abe discrete cosine transforms, prediction coding, kple entropy encoding ene be woakpɔ emetsonu nyuitɔwo. Gɔmeɖose siawo gɔmesese kpena ɖe ŋuwò nèwɔa nyametsotso siwo ŋu nènya nu tsoe le nutete ƒe ɖoɖowo kple nɔnɔme siwo nàzã na nɔnɔme vovovowo ŋu.

• Lossy compression ɖea nyatakakawo ɖa tegbee gake ewɔa faɛl suewo
• Lossless compression kpɔa nyatakaka gbãtɔwo katã ta
• Egbegbe nɔnɔmewo abe WEBP ene naa nutete ƒe mɔnu eveawo siaa
• Nutete ƒe dɔwɔwɔ nyuie nɔ te ɖe nɔnɔmetata me nyawo kple alesi woɖoe be woazãe dzi

Nɔnɔmetata ƒe Nɔnɔme Nyuitɔ Tiatia

Nɔnɔmetata ƒe nɔnɔme si sɔ tiatia le vevie ŋutɔ na nutete ƒe emetsonu nyuitɔwo. JPEG gakpɔtɔ nye dzidzenu na fotowo kple nɔnɔmetata siwo ƒe amadede trɔna vivivi, si naa nutete ƒe sɔsɔme nyuitɔ kekeake esime wòléa nukpɔkpɔ ƒe nyonyome nyui me ɖe asi. Alesi wowɔe la bi ɖe nukpɔkpɔ sesẽwo nutete me kple amadede geɖe gake ewɔa avu kple nugbɔ ɖaɖɛwo kple nuŋɔŋlɔwo, eye zi geɖe la, ewɔa blemanu siwo woate ŋu akpɔ le teƒe siwo vovototo gã aɖe le. PNG nye tiatia si wodi wu na nɔnɔmetata siwo hiã be woawɔ nu le gaglãgbe, nɔnɔmetata siwo ƒe go ɖaɖɛ, screenshots, kple nɔnɔmetata siwo ƒe amadedewo seɖoƒe li na. Togbɔ be zi geɖe la, PNG faɛlwo lolona wu JPEGwo hã la, wokpɔa nyatakaka siwo me kɔ nyuie ta eye wodoa alɔ alfa-mɔ̃wo. Le nyatakakadzraɖoƒe ƒe nɔnɔmetatawo, dzesiwo, kple nɔnɔmetatawo gome la, zi geɖe la, PNG naa dadasɔ nyuitɔ kekeake le nyonyome kple ɖekawɔwɔ me le mɔ̃ vovovowo kple nyatakakadzraɖoƒe vovovowo dzi. WEBP kple AVIF tsi tre ɖi na nɔnɔmetata ƒe nɔnɔme ƒe dzidzime si gbɔna, si naa nutete ƒe ŋutete si de ŋgɔ wu ne wotsɔe sɔ kple nɔnɔmetata xoxowo. WEBP ateŋu aɖe faɛl ƒe lolome dzi akpɔtɔ 25-50% ne wotsɔe sɔ kple JPEG esime wòléa nyonyome ɖeka me ɖe asi, eye wòdoa alɔ nutete si me bu kple esi mebu o siaa kpe ɖe nuwɔwɔ le gaglãgbe ŋu. AVIF naa nutete si nyo wu gɔ̃ hã gake eƒe web-browser ƒe kpekpeɖeŋu seɖoƒe li nɛ. Ne èle nɔnɔmewo tiam la, bu wò nyaselawo ƒe web-browser ƒe ɖekawɔwɔ ŋu kpe ɖe compression efficiency ŋu.

• JPEG nyo wu le foto siwo ƒe amadede ƒe vovototo sesẽwo gome
• PNG sɔ nyuie na nɔnɔmetatawo, dzesiwo, kple nɔnɔmetata siwo hiã be woawɔ nu le gaglãgbe
• WEBP naa nutete si de ŋgɔ wu kple browser ƒe kpekpeɖeŋu si le dzidzim ɖe edzi
• AVIF naa nutete deŋgɔ gake eƒe ɖekawɔwɔ seɖoƒe li na

Dzedzeme ƒe Ðoɖowo Kple Nɔnɔmewo Zazã Nyuie Wu

Dzɔdzɔmeɖoɖowo kpɔa ŋusẽ ɖe faɛl ƒe lolome kple nukpɔkpɔ ƒe dzedzeme siaa dzi vevie. Le JPEG ƒe nutete gome la, zi geɖe la, nyonyome ƒe seƒewo tso 0-100, afisi 85-95 naa foto akpa gãtɔ ƒe nyonyome nyuitɔ kekeake, 75-85 naa nyonyome nyui si me woɖea woƒe lolome dzi kpɔtɔna wòdzena, eye ne mede 75 o ate ŋu ahe blemanu siwo woate ŋu akpɔ vɛ. Ðoɖo nyuitɔ nɔ te ɖe nɔnɔmetata ƒe emenyawo kple nukpɔkpɔ ƒe nɔnɔme dzi – zi geɖe la, nɔnɔmetata siwo wokpɔ le asitelefonwo dzi ate ŋu azã ɖoɖo siwo ƒe nyonyome bɔbɔ wu esiwo woɖena fiana le ŋkuléleɖenuŋumɔ̃ siwo ƒe nɔnɔme deŋgɔ dzi. Nutete ƒe nɔnɔme deŋgɔwo ate ŋu ana emetsonuwo nanyo ɖe edzi. JPEG encoding si yia ŋgɔ tsɔa nɔnɔmetatawo dea agba me le mɔzɔzɔ geɖe me, si wɔnɛ be agbatsɔtsɔ ƒe duƒuƒu si wosusu na web dɔwɔɖoɖowo nyona ɖe edzi. Chroma subsampling ɖea amadede ŋuti nyatakakawo dzi kpɔtɔna esime wòléa keklẽ ta, eye wòwɔa amegbetɔ ƒe nukpɔkpɔ ƒe nukpɔsusu ŋudɔ tsɔ kpɔa faɛl suewo gbɔ. Le PNG ƒe nutete gome la, asitɔtrɔ le nutete ƒe seƒe (0-9) kpɔa ŋusẽ ɖe dɔwɔwɔ ƒe ɣeyiɣi kple faɛl ƒe lolome dzi, eye zi geɖe la, dzidzenu 6 naa dadasɔ nyuitɔ kekeake. Batch dɔwɔwɔ kple nyonyome ƒe ɖoɖo siwo mewɔa tɔtrɔ o kpɔa egbɔ be emetsonuwo sɔ le nɔnɔmetata gãwo nuƒoƒoƒu me. Ne èle nɔnɔmetata geɖewo ŋudɔ wɔm la, ɖo nyonyome ƒe dzidzenuwo ɖe wò zazã ƒe nɔnɔme tɔxɛ dzi – e-commerce adzɔnuwo ƒe fotowo ateŋu abia be woƒe nyonyome de ŋgɔ wu (90-95) wu hadomenyatakakadzraɖoƒe ƒe nɔnɔmetata suewo (70-80). Dodokpɔ vovovowo kpɔ kple nɔnɔmetata siwo le teƒenɔlawo kpena ɖe ŋuwò nèɖoa nɔnɔme nyuitɔwo kekeake na wò dɔwɔwɔ.

Nyametsotso kple Dimension Optimization

Nɔnɔmetata ƒe didime kpɔa ŋusẽ ɖe faɛl ƒe lolome dzi tẽ, zi geɖe la, ewɔa nuku wu nutete ƒe nyonyome ƒe ɖoɖowo. Nɔnɔmetata ƒe lolome dzi ɖeɖe kpɔtɔ 50% ateŋu aɖe faɛl ƒe lolome dzi akpɔtɔ va ɖo 75%, si ana be lolome nyuitɔ le vevie ŋutɔ na web ƒe nyonyome kple nudzraɖoƒe ƒe dɔwɔwɔ nyuie. Trɔ nɔnɔmetatawo ƒe lolome ɣesiaɣi ɖe woƒe ɖeɖefia ƒe didime si sɔ gbɔ wu nu tsɔ wu be nàɖo ŋu ɖe HTML alo CSS ŋu be woaɖe wo dzi akpɔtɔ, elabena web-browserwo gakpɔtɔ wɔa faɛl siwo ƒe lolome de blibo la ƒe kɔpi. Tia nɔnɔmetata siwo sɔ na zazã vovovowo: ƒã hafi nyatakakadzraɖoƒe ƒe nɔnɔmetatawo hiãa PPI si wu 72-150, gake agbalẽtatawo ya hiã PPI 300 alo esi wu nenema. Hadomegbenɔnɔ ƒe nyatakakadzraɖoƒewo ƒe didime ƒe nudidi tɔxɛwo le wo si – Instagram nyatakakawo wɔa dɔ nyuie wu le piksel 1080×1080 me, gake ele be Facebook ƒe akpa dzi fotowo nanye piksel 820×312. Ne ètsɔ wò nɔnɔmetatawo sɔ kple mɔ̃a ƒe nɔnɔmewo la, xea mɔ na hadomenyatakakadzraɖoƒewo ƒe nutete madzemadzee. Ne èdi nyatakakadzraɖoƒe ƒe ɖoɖo si wɔa dɔ nyuie la, bu nɔnɔmetata ƒe lolome vovovowo wɔwɔ ŋu be nàsubɔ tɔtrɔ siwo sɔ siwo wotu ɖe mɔ̃a ƒe ŋutetewo dzi. Egbegbe mɔnuwo abe nɔnɔmetata siwo ɖoa nya ŋu kple srcset nɔnɔmewo ene ɖea mɔ na nyatakakadzraɖoƒewo be woate ŋu awɔ nɔnɔmetata ƒe lolome si sɔ wu ƒe kɔpi. Mɔnu sia ɖea bandwidth zazã dzi kpɔtɔna le asitelefonwo dzi esime wòléa nyonyome me ɖe asi le nukpɔkpɔ siwo ƒe nɔnɔme deŋgɔ dzi.

• Trɔ nɔnɔmetatawo ƒe lolome ɖe ɖeɖefia ƒe didime si sɔ gbɔ wu nu hafi nàzi wo dzi
• Zã 72-150 PPI na web, 300+ PPI na agbalẽtata
• Tsɔ hadomenyatakakadzraɖoƒe ƒe nɔnɔmewo sɔ kple wo nɔewo be nàƒo asa na gbugbɔgaƒoƒo
• Wɔ nɔnɔmetata siwo ɖoa nya ŋu na cross-device ƒe dɔwɔwɔ nyuitɔ kekeake

Batch Dɔwɔwɔ kple Dɔwɔwɔ ƒe Dɔwɔwɔ Nyuie

Batch dɔwɔwɔ nyuie naa nɔnɔmetatawo ƒe nutete ƒe dɔwɔwɔwo nɔa bɔbɔe, vevietɔ ne wole nɔnɔmetata gbogbo aɖewo ŋu dɔ wɔm. Ŋkɔyɔyɔ ƒe ɖoɖo siwo mewɔa tɔtrɔ o, agbalẽdzraɖoƒe ƒe ɖoɖowo, kple dɔwɔwɔ ƒe nɔnɔmewo ɖoɖo anyi kpɔa egbɔ be emetsonu siwo woate ŋu agblɔ ɖi le wò nɔnɔmetatawo ƒe agbalẽdzraɖoƒe bliboa me. Wɔ nɔnɔmetatawo na zazã ƒe nɔnɔme vovovowo – ɖeka na nyatakakadzraɖoƒe ƒe nɔnɔmetata suewo, bubu na nɔnɔmetata siwo woate ŋu ata, eye bubu na hadomenyatakakadzraɖoƒewo. Dɔwɔnu siwo wɔa dɔ le wo ɖokui si ate ŋu aɖe asi ƒe agbagbadzedze dzi akpɔtɔ ŋutɔ esime wole wɔwɔm ɖekae. Nɔnɔmetatawo ŋuti dɔwɔwɔ ƒe dɔwɔnu geɖe doa alɔ batch dɔwɔwɔ siwo ate ŋu atrɔ asi le nɔnɔmetatawo ƒe lolome ŋu, aƒo wo nu ƒu, ahatrɔ wo le ɣeyiɣi ɖeka me. Ne èle dɔwɔwɔ ƒe ɖoɖo siwo wowɔna le wo ɖokui si ɖom la, de nyonyomedzikpɔkpɔ ƒe teƒewo eme be nàkpɔe ɖa be emetsonuwo sɔ ɖe wò dzidzenuwo nu hã. Bu dɔwɔwɔ ƒe nɔnɔmetata vovovowo wɔwɔ na nɔnɔmetata ƒomevi vovovowo ŋu – nɔnɔmetatawo ateŋu azã nɔnɔme vovovowo wu anyigba ƒe nɔnɔmewo alo nusiwo wowɔ ƒe fotoɖeɖe. Failwo ƒe ɖoɖowɔwɔ va le vevie wu ne woƒo nɔnɔmetata gãwo nu ƒu. Wɔ version control ŋudɔ to faɛl gbãtɔwo ɖeɖeɖa tso tɔtrɔ siwo ŋu wotrɔ asi le gbɔ, eye nàzã faɛl ŋkɔ siwo ɖɔa nu siwo me metadata siwo sɔ abe didime, nyonyome ƒe ɖoɖowo, alo zazã si woɖo be woazã ene le. Mɔnu sia xea mɔ na nɔnɔmetata gbãtɔwo ŋɔŋlɔ ɖe wo dzi le vo me eye wònana wònɔa bɔbɔe be woagbugbɔ nɔnɔmetatawo awɔ dɔ kple ɖoɖo vovovowo ne nudidiwo trɔ.

Mɔnu Deŋgɔwo ƒe Dɔwɔwɔ Nyuie

Metadata ɖeɖeɖa ateŋu aɖe faɛl ƒe lolome dzi akpɔtɔ ŋutɔ evɔ makpɔ ŋusẽ ɖe nukpɔkpɔ ƒe nyonyome dzi o. Digitál fotoɖemɔ̃wo kple ɖɔɖɔɖo kɔmpiutadziɖoɖowo dea EXIF ​​nyatakaka gbogbo aɖewo, amadedewo ƒe nɔnɔmetatawo, kple nɔnɔmetata sue siwo ate ŋu mahiã be woatsɔ awɔ dɔ mamlɛtɔ o la eme. Metadata sia ɖeɖeɖa ateŋu aɖe faɛl ƒe lolome dzi akpɔtɔ 10-30%, vevietɔ na web dɔwɔwɔ siwo me kilobyte ɖesiaɖe kpɔa ŋusẽ ɖe agbatsɔtsɔ ƒe duƒuƒu dzi. Amadede ƒe teƒe ƒe nyonyome naa mɔnukpɔkpɔ bubuwo be woawɔ nutete. Nɔnɔmetatawo tɔtrɔ tso amadede ƒe teƒe gbadzawo abe Adobe RGB yi sRGB me ate ŋu aɖe faɛl ƒe lolome dzi akpɔtɔ esime wòle be woawɔ ɖeka kple nyatakakadzraɖoƒewo kple asitelefonwo. Nyatakakadzraɖoƒe akpa gãtɔ mate ŋu agbugbɔ amadede siwo keke ta la awɔ le mɔ aɖeke nu o, si wɔe be tɔtrɔ sia ɖea vi na Internet zazã. Gake dzra amadede ƒe teƒe gbãtɔwo ɖo na agbalẽtatadɔwo le afisi amadede ƒe nyateƒetoto le vevie le. Adaptive compression techniques trɔa asi le ɖoɖowo ŋu le nɔnɔmetata me nyawo me dzodzro nu. Egbegbe dɔwɔnu aɖewo dea dzesi teƒe siwo wowɔ nu geɖe tsitotsito le wo ɖokui si eye wowɔa nutete si mewɔa nuvevi ame boo o be woakpɔ nu vevi siwo wokpɔna ta esime wole teƒe siwo sɔ la tem sesĩe wu. Mɔnu sia si me nunya le ate ŋu akpɔ nukpɔsusu ƒe nyonyome nyuitɔ le faɛl ƒe lolome ɖeka me ne wotsɔe sɔ kple nutete ƒe ɖoɖo ɖeka siwo wozã le nɔnɔmetata bliboa me.