A ilensi yeso lenhlanziiyilensi ebanzi kakhulu, eyaziwa nangokuthi ilensi ye-panoramic. Ngokuvamile kubhekwa ukuthi ilensi enobude obuqondile obungu-16mm noma obufushane obuqondile ilensi ye-fisheye, kodwa kobunjiniyela, ilensi enobubanzi be-engeli yokubuka obungaphezu kwama-degrees angu-140 ibizwa ngokuthi ilensi ye-fisheye. Empeleni, kukhona namalensi ane-engeli yokubuka edlula noma efinyelela ngisho nama-degrees angu-270. Ilensi ye-fisheye iyiqembu lokukhanya elilwa ne-telephoto elinokuphambuka okuningi kwe-barrel. Ilensi yangaphambili yale lensi ivele ngaphambili ngendlela ye-parabolalic, futhi isimo sifana neso lenhlanzi, yingakho igama layo libizwa ngokuthi “ilensi ye-fisheye”, futhi umphumela wayo wokubuka ufana nowenhlanzi ebuka izinto ezingaphezu kwamanzi.
Ilensi yeso lenhlanzi
Ilensi yefisheye ithembele ekwethuleni ngokwenziwa inani elikhulu lokuphambuka kwemigqomo ukuze kutholakale i-engeli enkulu yokubuka. Ngakho-ke, ngaphandle kwento ephakathi nendawo yesithombe, ezinye izingxenye okufanele zibe yimigqa eqondile zinokuphambuka okuthile, Okuholela emikhawulweni eminingi ekusetshenzisweni kwayo. Isibonelo, emkhakheni wezokuphepha, ilensi yefisheye ingathatha indawo yamalensi amaningi ajwayelekile ukuze iqaphe ububanzi obubanzi. Njengoba i-engeli yokubuka ingafinyelela ku-180º noma ngaphezulu, cishe ayikho i-engeli efile yokuqapha. Kodwa-ke, ngenxa yokuphambuka kwesithombe, into kunzima ukuyibona ngeso lomuntu, okunciphisa kakhulu ikhono lokuqapha; Esinye isibonelo sisemkhakheni wamarobhothi, amarobhothi azenzakalelayo ayadingeka ukuqoqa ulwazi lwesithombe lwezigcawu ezizungezile futhi azibone ukuze athathe izinyathelo ezifanele.
Umailensi yeso lenhlanziUma isetshenziswa, ukusebenza kahle kokuqoqa kungandiswa izikhathi ezingu-2-4, kodwa ukuphazamiseka kwenza kube nzima ukukubona isofthiwe. Ngakho-ke singayibona kanjani isithombe kusuka kulensi ye-fisheye? Kunikezwa i-algorithm yokubona izikhundla zezinto esithombeni. Kodwa futhi kunzima ukuqaphela ukuqashelwa kwehluzo eziyinkimbinkimbi ngenxa yobunzima bekhompyutha besofthiwe. Ngakho-ke, indlela evamile manje iwukususa ukuphambuka esithombeni ngochungechunge lwezinguquko, ukuze kutholakale isithombe esijwayelekile bese sihlonzwa.
Izithombe ze-Fisheye azilungiswanga futhi azilungiswanga
Ubudlelwano phakathi kwesiyingi sesithombe nenzwa bunjengoba bulandelayo:
Ubudlelwano phakathi kwesiyingi sesithombe nenzwa
Ekuqaleni,amalensi e-fisheyezisetshenziswe kuphela ekuthwebuleni izithombe ngenxa yobuhle bazo obukhethekile ngenxa yokuphambuka kwemigqomo eziyakhayo ngesikhathi senqubo yokuthwebula izithombe. Eminyakeni yamuva nje, ukusetshenziswa kwelensi ye-fisheye kuye kwasetshenziswa kakhulu emkhakheni wokuthwebula izithombe nge-wide-angle, ezempi, ekuqapheni, ekulingiseni okune-panoramic, ekuboniseni okuyisiyingi njalo njalo. Uma kuqhathaniswa namanye amalensi, ilensi ye-fisheye inezinzuzo zesisindo esilula nosayizi omncane.
Isikhathi sokuthunyelwe: Jan-29-2022
