Iyini ukuxhunyaniswa kwekhamera efonini futhi kuyini?

Imakethe yefoni ephathekayo igcwele amamodeli anekhamera enezinqumo ezinkulu. Kukhona ngisho nama-smartphones angabizi kakhulu anezinzwa ezinesiphakamiso sama-megapixel angu-16-20. Umthengi ongenalwazi ugijima ikhamera "epholile" futhi unikeza okuthandayo kwifoni lapho isinqumo sekhamera siphezulu. Akazi ngisho nokuthi ubanjwe nokukhishwa kwabadayisi nabathengisi.

Iyini isinqumo?

Isixazululo sekhamera yisipharamitha esibonisa usayizi wokugcina wesithombe. Inquma kuphela ukuthi isithombe esiphelele sizoba sikhulu kangakanani, okungukuthi, ububanzi bayo nokuphakama kwamaphikseli. Okubalulekile: ikhwalithi yesithombe ayishintshi. Isithombe singase siphenduke sibe sesincane, kodwa sikhulu ngenxa yemvume.

Imvume ayithinti ikhwalithi. Kwakungenakwenzeka ukuthi ungakhulumi ngalokhu kumongo wokubhaliwe kwekhamera ye-smartphone. Manje ungaya ngqo endaweni.

Iyini ukubhalwa kwekhamera efonini?

Ukubamba iqhaza kwekhamera kukhulisa okwenziwe ekubonisweni kwesithombe. Kuyinto isithombe, hhayi ubukhulu bomthamo. Okusho ukuthi, isofthiwe ekhethekile, ngenxa yokuthi isifinyezo esinesisombululo se-8 Mp siqondiswa ku-13 Mp noma ngaphezulu (noma ngaphansi).

Uma sicubungula ukufana, ikhamera yokubhalwa kwekhamera ifana ne-glass magnifying noma i-binocular. Lawa madivayisi akhulisa isithombe, kodwa angenzi ukufaneleka noma okuningiliziwe. Ngakho uma ukuchazwa kuboniswa kuzici efonini, ukulungiswa kwangempela kwekhamera kungase kube ngaphansi kwesinqumo esinqunyiwe. Akukubi futhi akulungile, kuvele nje lapho.

Kuyini?

I-polpolation yanda ukwandisa usayizi wesithombe, akukho lutho. Manje kuyinkohliso yabadayisi nabakhiqizi abazama ukuthengisa umkhiqizo. Ziyizinombolo ezinkulu kubonisa ukuthi i-poster yokukhangisa isinqumo sefoni yekhamera bese uyibeka njengenzuzo noma into enhle. Akukona kuphela ukuthi isinqumo ngokwazo asiphazamisi ikhwalithi yezithombe, ngakho-ke singakwazi ukuphikisana.

Eminyakeni eyi-3-4 eyedlule abaningi abakhiqizi babexosha inani lama-megapixels futhi ngezindlela ezahlukene bazama ukuwafaka kuma-smartphones abo ngezinzwa eziningi ngangokunokwenzeka. Ngakho kwakukhona amafoni ahlakaniphile anekhamera enesinqumo se-5, 8, 12, 15, 21 Mp. Ukudweba izithombe, bangakwazi ngesikhathi esifanayo njengabahlinzeki besepha eshibhile, kodwa abathengi, ngemuva kokubona isitika esithi "Ikhamera ku-18 Mp", ngokushesha bafuna ukuthenga leyo foni. Ngokufika kwe-interpolation, ukuthengisa ama-Smartphones anjalo kuye kwaba lula ngenxa yokwazi ukufaka ngokuzenzakalelayo ama-megapixels ekhamera. Yiqiniso, ikhwalithi yesithombe isiqalile ukukhula nesikhathi, kodwa ngokuqinisekile hhayi ngenxa yesinqumo noma inkulumo, kodwa ngenxa yentuthuko yemvelo ngokuthuthukisa izinzwa kanye nesofthiwe.

Uhlangothi lobuchwepheshe

Iyini ukubhalwa kwekhamera efonini ngokwezifiso, ngoba yonke imibhalo ngenhla ichaze umqondo oyinhloko?

Ngosizo lwesofthiwe ekhethekile, amaphikseli amasha adonselwa esithombeni. Isibonelo, ukukhulisa isithombe izikhathi ezimbili ngemva komugqa ngamunye wamaphikseli esithombeni, umugqa omusha ungeziwe. I-pixel ngayinye kulo mkhakha omusha igcwele umbala. Umbala wokugcwaliswa ubalwa nge-algorithm ekhethekile. Indlela yokuqala kakhulu ukugcwalisa umugqa omusha ngemibala amaphikseli aseduze anayo. Umphumela walokho kusetshenzwa kuyoba yingozi, kepha le ndlela idinga ubuncane bokusebenza kwekhompyutha.

Ngokuvamile, enye indlela isetshenziswa. Okusho ukuthi, umugqa omusha wamaphikseli ungeziwe esithombeni sokuqala. I-pixel ngayinye igcwele umbala, futhi, futhi, kubalwa njengenani elilinganiselwe lamaphikseli angomakhelwane. Le ndlela inikeza imiphumela engcono, kodwa idinga imisebenzi eminingi yokucubungula.

Ngenhlanhla, izinqubo zamaselula zanamuhla ziyashesha, futhi ngomkhuba umsebenzisi akaqapheli ukuthi uhlelo luhlela kanjani isithombe, uzama ukukhulisa ngobukhulu usayizi walo.

Kunezindlela eziningi ezithuthukisiwe nezinhlelo zokuqamba amagama, ezithuthukiswa njalo: imingcele phakathi kwemibala iyashintsha, imigqa iba yicacile futhi icacile. Akukhathaleki ukuthi zonke lezi zilungiswa zakhiwe kanjani. Impela umbono we-interpolation yekhamera ibhanal futhi akunakwenzeka ukujwayela esikhathini esizayo esiseduze. Ngosizo lokubhaliwe akunakwenzeka ukwenza isithombe sichazwe kabanzi, engeza imininingwane emisha noma ukuthuthukisa nganoma iyiphi enye indlela. Kuphela kuma-movie, isithombe esincane esicacile ngemuva kokusebenzisa i-pair of filters siyacaca. Ngokwenza, lokhu akukwazi.

Udinga ukukwenziwa kwe-interpolation?

Abasebenzisi abaningi, ngokungazi kwabo, babuza imibuzo emaforamu ahlukene ukuthi benze kanjani ukuhlanganiswa kwekhamera, bekholelwa ukuthi kuzothuthukisa ikhwalithi yezithombe. Eqinisweni, ukungqubuzana ngeke nje kuphela kuthuthukise ikhwalithi yesithombe, kodwa kungenza kube kubi nakakhulu, ngoba amaphikseli amasha azokwengezwa ezithombeni, futhi ngenxa yokubala okungavamile ngaso sonke isikhathi kwemibala yokugcwalisa isithombe kungase kube nezingxenye ezingasetshenziswanga, ubuningi be-granularity. Ngenxa yalokho, ikhwalithi iyawa.

Ngakho ukuphambana efonini kuyindlela yokumaketha engadingekile. Angakhulumi nje kuphela ukulungiswa kwesithombe, kodwa futhi izindleko ze-smartphone ngokwayo. Ungawa ngezinyathelo zabadayisi nabakhiqizi.