Funda ukuthi ubukhulu bePixel ne-Interpolation buhlobene kanjani
Uma ukwandisa usayizi wesithombe sedijithali, uhlobo oluthile lwezingqinamba lwenzeka futhi lungathinta kakhulu izinga lezithombe. Kubalulekile ukuthi abathwebuli bezithombe baqonde ukuthi yikuphi ukuphikisana nokuthuthukisa imiphumela yayo.
Iyini i-Interpolation?
I-interpolation yigama elisetshenziselwa ukuchaza indlela yokwandisa usayizi wamaphikseli ngaphakathi kwesithombe . Ngokujwayelekile lisetshenziselwa ukwandisa usayizi jikelele wesithombe.
Ukwandisa usayizi wesithombe ngokuvamile akukwaziswa ngoba ikhompyutha idinga ukusebenzisa i-interpolation ukwengeza ulwazi olungaveli lapho. Imiphumela yalokhu ingahluka ngokusuka kohlobo lokusetshenziswa kwamagama kodwa, ngokuvamile, akulungile.
Njengoba ikhompyutha izama ukuhumusha ukuthi yiluphi ulwazi olusha oludinga ukungezwa, isithombe singaba sici noma sibe namaphoyinti amancane ombala noma ithoni ebonakala ingekho endaweni.
Amanye amakhamera edijithali ( iphuzu elikhulu futhi adubule amakhamera namafoni) sebenzisa ukukopisana ukuze udale ' ukusondeza kwedijithali .' Lokhu kusho ukuthi ikhamera ingasondeza ngaphesheya kobubanzi obuningi obuvumelekile lensikhamera (ebizwa ngokuthi ukusondeza kwe-optical). Uma usebenzisa enye yala makhamera, kuvame ukuba ngcono ukuthi usondele eduze nendaba kunokusebenzisa ukusondeza kwe-digital.
I-interpolation isetshenziswa kaningi kwisofthiwe ye-imaging yekhamera futhi yilapho umthwebuli wezithombe edingeka ngempela ukuqonda izinhlobo ezahlukene zokubhaliwe.
I-Interpolation eseduze yomakhelwane
I-interpolation yomakhelwane eseduzane isetshenziselwa kakhulu ikhamera uma ibukeza futhi ikhulisa izithombe ukubuka imininingwane. Kwenza nje amaphikseli akhudlwana, futhi umbala we-pixel entsha ufana nephikseli yasekuqaleni yaseduzane.
Ukungalungi: Akufanelekile ukwandisa izithombe ukuze uphrinte njengoba kungabangela i-jaggies .
I-Billyar Interpolation
Ukubhaliwe kwe-Bilinear kuthatha ulwazi kusuka ku-pixel yangempela, namaphikseli amane ayithinta, ukunquma ngombala we-pixel entsha. Iveza imiphumela enhle kakhulu, kodwa iyanciphisa izinga kakhulu.
Ukungalungi: Izithombe zingaba zibukhali.
I-Interpolation ye-Bicubic
Ukubhaliwe kwe-bicubic kuyinkimbinkimbi kakhulu yeqembu, njengoba kuthatha ulwazi kusuka ku-pixel yangempela kanye namaphikseli angu-16 azungezile ukudala umbala we-pixel entsha.
Ukubala kwe-bicubic kuthuthuke kakhulu kunezinye izindlela ezimbili, futhi iyakwazi ukukhiqiza izithombe eziphezulu zokuphrinta. I-interpolation ye-bicubic iphinde inikeze izinhlobo ezimbili ze-"Smoother" ne "Sharper" ngemiphumela ehlelwe kahle.
Ukungalungi: Nakuba kungenye yezinketho ezingcono kakhulu, ukukhulula okukhulu kwesayizi kungasenza ukunciphisa ikhwalithi yesithombe.
I-Interpolation ye-Fractal
Esetshenziselwa kakhulu amafayili amakhulu, ama-sampuli e-fractal interpolation kusuka kwamaphikseli amaningi nakakhulu kunombhalo we-bicubic. Ikhiqiza imiphetho ebukhali futhi ifinyelele kancane kodwa idinga isofthiwe eqondile ukuyisebenzisa. Abaphrinta abaqeqeshiwe bavame ukusebenzisa ama-interpolation ama-fractal.
Ukungalungi: Iningi lekhompyutha yekhompyutha ayinayo le nketho.