PNG Izixhobo

Guqula PNG ukuya nokubuya kwiifomathi ezahlukeneyo

Malunga PNG

Iifayili ze-PNG ziqhubekeka ngokucacileyo kwaye zisebenzisa ukucinezela okungalahleki, zenza ukuba zilungele amagrafiki, ilogos, kunye nemifanekiso yekhusi.

Iindlela Ezisetyenziswa Ngazo Eziqhelekileyo

Ukudala iilogo kunye nemizobo enemvelaphi ecacileyo
Ukugcina imifanekiso-skrini kunye nemifanekiso yobugcisa yedijithali
Imizobo yewebhu efuna ukucaca

PNG Imibuzo Ebuzwa Rhoqo Ngokuguqula

Yintoni i-PNG?

I-PNG yifomati yomfanekiso we-raster engenakulahleka egcina yonke i-pixel ngaphandle koxinzelelo lwezinto ezibonakalayo. I-PNG ilungele kakhulu imifanekiso eqingqiweyo yekhusi, umzobo womgca, imifanekiso engumda onzima nanoma yiphi na imifanekiso enokuthi iguqulwe.

Ingaba kukho into elahlekile xa i PNG iguqulwa ibe yifomati enye engalahlekiyo?

Akukho data ye-pixel. PNG igcina umfanekiso ngokuchanekileyo kunokuba ilinganise, ngoko uguqulelo phakathi kwefomati ezimbini ezingalahlekiyo luyabuyiselwa kwaye luyaphinda kungekho xesha lide ngaphandle kokulahleka. Okunokuphelelwa yinto yonke ejikeleze ii-pixels - iiprofayili zombala, ukuqaqamba, udweliso, i-metadata efakwe ngaphakathi - kuba inkxaso yazo itshintsha kakhulu phakathi kwefomati kunendawo yokugcina i-pixel. I-PNG isebenzisa uxinzelelo lwe-DEFLATE ngaphezulu kwamagqabantshintshi okuskena acociweyo, ngoko ke i-pixel nganye ihlala ngokuchanekileyo, kunye ne-8-bit epheleleyo ye-alpha channel.

Kutheni i-screen recorder yam igcina i-PNG?

Kuba yifomati ekhowudiweyo yenkqubo yoshicilelo, ngoko ukuqokelelwa kubiza ngaphezu kokungasebenzisi uqhubekeko- magama ngelixa isixhobo sixakekile sisenza enye into. Kukhetho olunolwazi ngelixa kushicilelo kwaye kunzima emva koko - ifayile ifuna ukuguqulwa phambi kokuba ikwazi ukunikezelwa, ukuhlela okanye ukufakelwa naphi na ngaphandle kwendlela eyenzayo. I-PNG yaphuhliswa ngowe-1996 njengento engekhoyo kwipateni ye-GIF, kwaye yayiyifomati yomfanekiso ongekhoyo kwi-web.

Ingaba i-PNG igcina isiqalo esicacileyo?

Ewe - ifomati igcina isiqhagamshelanisi se-alpha, ngoko ilogo ecutiweyo, imifanekiso yemveliso kunye nokugqitywa gcina ukubonakala kwabo endaweni yokufika kwi-rectangle emnyama. Ukutshintsha kwifomati engenayo i-alpha kulapho i-alpha ihamba khona kakubi: iindawo ezibonakalayo zigqityiwe ngombala oqinileyo, ngokuqhelekileyo omnyama okanye omnyama, kwaye akukho ndlela yokubuyela umva efutshane yokufihla umxholo kwakhona. I-PNG yinketho efanelekileyo yokuthatha imifanekiso yekhusi, ilogos, umzobo womgca nantoni na enemiphetho eqinileyo okanye ebonisa ngaphaya — akukho cingo, akukho mbala obandayo.

Ndingasebenzisa i-PNG ngokuthe ngqo kwiphepha le-web?

Ewe - yonke ibrowser yangoku iyenza ngokusemthethweni, ngoko ayifunanga ukopi ozakubuyela umva nokuguqulela ngexesha lokushicilela. Umbuzo osele ukhona ubunzima kunokuba uxhaso: umfanekiso ofanayo kwifomati ye web ekutsha ihlala ikwishumi elinesibini yobungakanani kwifomati ebonakalayo yomgangatho, ekufuneka yenziwe nantoni na ebonakala ngapha kweqokobhe.

Ubani olawula ifomati PNG?

Akukho mntu, kwaye loo nto yinjongo yayo. Ulwazi oluthe kratya luza kufumaneka kumazwe, wonke umntu angalisebenzisa ngaphandle kokucela okanye ukuhlawula, kwaye akukho nkampani ingatshintsha iimeko kamva - oko kukuthi, iincwadi, iindidi zezinto eziqhelekileyo kunye nemibutho yomphakathi ichaza ifomati njengele nto nayiphi na into ekufuneka ivuleke kwiminyaka emibini. Urhwebo aluhambelani, olulugqibeleleyo; kukuba akukho mnikeli oza kuqhagamshelana naye xa ezinye izixhobo zisebenzisa inkcukacha ezimbi.

Ndingayinika kwakhona igama elipheleleyo lesiqendu endaweni yokuguqula i PNG?

Akukho nanye, kwaye ifanele ukuqonda kutheni: unikezelo luphawu, ngelixa i bytes ngaphakathi zidityaniswe kwifomati ekhethekileyo. Ukuphinda ubize ifayile ivelisa ifayile igama layo lithembisa into imixholo yayo ayinikezeli, kwaye nantoni na evula ifayile okanye ilahlekile ifayile okanye ifunda ngokungachanekanga. Ukuphela kwendlela efutshane kuhlobo olubini oluyinyani ibhokisi efanayo phantsi kwegama elahlukileyo - kwaye nalapho ukuphinda ubhale ngokuchanekileyo kukhuselekile kunegama elahlukileyo.

Ndingaguqula isiqulathi seefayili esipheleleyo se PNG iifayili ngenye indlela?

Ewe - shiya ngaphaya kunye kwaye zifolonyelwa njengemisebenzi enye kunokuba ziguqulwe nganye ngaxeshanye, ngemimiselo efanayo esetyenziswa kwiqela kunye neziphumo ezibuyiselweyo nganye nganye. Iiakhawunti ezikhululekileyo ziqhuba iqela ngalinye; inkqubo ehlawulweyo iphakamisa zombini uthelekiso kunye nobungakanani befayile nganye umda, owenza uguqulelo lovimba omkhulu osebenzayo.

Ndimele ndiguqule njani i-PNG ibe yifomati enye?

Guqula i-PNG ibe yi-JPG okanye i-WebP xa umxholo omiselweyo uvula i-web okanye i-imeyile, apho ubungakanani befayili obuncinci bubalulekile ngakumbi kune-pixel nganye yobuxoki. I-PNG yifomati yomfanekiso ophantsi: umfanekiso ogciniweyo njenge-PNG uhlala ukhulu ngeeyure ezisixhenxe ukuya kwezilishumi kunemifanekiso efanayo njenge-JPG okanye i-WebP.

Ingaba ukujika i-PNG kuya kunyusa ubunjani bomfanekiso?

Xa uguqula i-PNG ibe yifomati engalahlekiyo, ii-pixels zigcinwa ngokuchanekileyo. Xa uguqula i-PNG ibe yifomati elahlekiyo njenge-JPG, umkhokeli usenza umgangatho-vs-ubungakanani borhwebo olulawulayo ngokudibanisa umgangatho wemveliso.