Ukufunda ngomshini kunjalo enye inkambiso esikulo njengamanje futhi sicabanga ukuthi singakusebenzisa ngokunenzuzo ukuthola izincomo ezingcono lapho silalele lezo zinhla zokudlalayo zomculo ku-Google Play Music. Izolo besiphawula ngomdlalo kaG omkhulu Ngokuvuselelwa okusha nalokhu kufunda komshini okuzokwazi kabanzi ngawe njengoba usebenzisa uhlelo lokusebenza ngokwengeziwe.
Manje ufuna ukusebenzisa leyo njini ukuthola zonke lezo zithombe ezikhawulelwe ukulungiswa kwedivayisi noma ngememori yangaphakathi encishisiwe yedivayisi. IGoogle ayifuni ukuphuthelwa yithuba lokuthi izithombe zokulungiswa okuphezulu ziya ngokuya zidingeka, ngoba izikrini, ezinjengama-smart TV noma ama-phablets, ziyawafuna. Kungakho kunjalo wethula inqubo ebizwa ngeRAISR.
"I-RAISR: Isithombe Esisheshayo futhi Esinembile Sokuxazululwa Okukhulu"
Kuyindlela efaka ukufunda komshini ukuze khiqiza izinhlobo zekhwalithi ephezulu yezithombe ezinokulungiswa okuphansi. I-RAISR ikhiqiza imiphumela engaqhathaniswa noma ingcono kunezindlela ezitholakalayo zokusombulula, futhi ithuthukise nesikhathi sokusebenza izikhathi eziyishumi kuya kweziyi-10. Lokhu kushesha enqubeni kuvumela ukuthi zitholakale kudivayisi ngesikhathi sangempela. Ngisho nangemva kwesikhathi, le ndlela izovimbela ukuzithokozisa kwezinto zobuciko ezinama-jagged noma aliasing ezikhona ezithombeni ezinesinqumo esiphansi.
Sekuyiminyaka embalwa kune inqubo ebizwa nge- upsampling, ekhiqiza isithombe esikhudlwana ngenani eliphakeme lamaphikseli nesithombe sekhwalithi ephezulu kusuka kokucaca okuphansi. Inqubo esebenzisa izindlela eziqondile ezigcwalisa amanani we-pixel entsha ngokusebenzisa inhlanganisela yamanani ayizungezile. Le ndlela iyashesha ngoba iyizihlungi eziqondile. Ngenkathi okwenza kubasheshe kubenze bangaphumeleli kakhulu ekwethuleni imininingwane ecacile kwimiphumela ephakeme yokulungiswa. Isithombe esingezansi sisikhombisa ngokuphelele.
Isebenza kanjani iRAISR
I-RAISR isebenzisa indlela ye- ukufunda komshini ngezithombe ezimbalwa, enye yekhwalithi ephansi nenye yekhwalithi ephezulu, ukuthola izihlungi okuthi, uma zisetshenziswa ngokukhetha kwiphikseli ngayinye yesithombe sokuxazululwa okuphansi, ziphinde zenze imininingwane engaqhathaniswa nekhwalithi yangempela. IRAISR "ingaqeqeshwa ngezindlela ezimbili." Eyokuqala indlela eqondile, lapho izihlungi zifundwa ngqo kusuka kuzithombe ezimbili zokucaca eziphansi neziphezulu. Enye indlela idlulisa isihlungi esifana nendlela ye- "upsampler" esithombeni esinokulungiswa okuphansi bese "ifunda" izihlungi zepasi elinikeziwe nesithombe sokucaca okuphezulu.
Noma ngabe iyiphi indlela, ukuhlunga kweRAISR "baqeqeshiwe" ngokusho kwezici "eziphakeme" ezitholakala kuma-patches amancane ezithombe, njengama-gradients ombala / wokukhanya, izifunda ezinamathele noma ezithe xaxa nokuningi, okubonakala ngokuqondiswa, amandla nokuhlangana.
Ngamafuphi, ngesikhathi sangempela i-RAISR ikhetha futhi isebenzise izihlungi ezifanele kakhulu ohlwini lwalabo abafunde kwiphikseli ngalinye elingumakhelwane esithombeni sokucaca okuphansi. Lapho lezo zihlungi zisetshenziswa kusithombe esisezingeni esibi kakhulu, ibuyisa imininingwane efaniswa ngekhwalithi neyangempela ukulungiswa okuphezulu. Yilokhu ekwenzayo ukususa izinto ezenziwe ngobuciko ezinjengamaphethini we-Moire nokuningi.
Kuze kube namuhla, ukusetshenziswa kwemishini yokufunda, ngaphezu kwamashumi eminyaka entuthuko kubuchwepheshe bezithombe, kunike amandla inqubekelaphambili ekusetshenzisweni kwezithombe okulele ezinhlotsheni ezahlukahlukene ezingaba khona. Esinye sezibonelo ezinikezwe iGoogle kungaba ukuthuthukisa ukuthinta kwe- «ingcosana ukusondeza» noma «ingcosana» ocingweni, okungafinyelela ekutheni ingabanjwa, igcinwe noma dlulisa izithombe ngokulungiswa okuphansi ukuze ekugcineni ifinyelele lapho iya khona ngesinqumo sayo esifanele, sekhwalithi ephezulu. Lokhu kungasho ukonga okukhulu kudatha esetshenziswe ekudlulisweni nasezinhlelweni zokugcina.