Ubuchwepheshe bevidiyo obutholakalayo namuhla bungobedijithali. Lapho bengakavuthwa, ochwepheshe bathi ividiyo ye-digital yayimbi kakhulu kune-analog, ngoba eyokugcina yayiqukethe imininingwane eminingi. Yize lokhu bekuyiqiniso ekuqaleni, akuselona iqiniso namuhla. Intuthuko eyenziwe eminyakeni yamuva yenze ukuthi kube lula ukuthola imininingwane eminingi kusuka esithombeni ngasinye futhi lokhu kuyasebenza emkhakheni wobungcweti nakulabo abayizimfundamakhwela. Eminyakeni eyishumi nje edlule, abasebenzisi bebenezinhlelo zokuqoshwa kwamavidiyo we-analog ezikwazi ukumelela imigqa engama-250, kanti ngezinhlelo zanamuhla zedijithali, izithombe ezinemigqa engaphezu kuka-500 zingatholakala, okungukuthi, ngaphezu kokuphindwe kabili. Izithombe zevidiyo ngalesi sikhathi zibuye zibe yidijithali kuyo yonke inqubo, kusuka ekubanjweni ngokudluliswa, ukugcinwa nokuhlelwa, ukumelwa ezikrinini zakamuva zesizukulwane. Lokhu kubaluleke kakhulu. Ngenkathi ukucaciseleka kwevidiyo ye-analog nencazelo yesithombe kulahlekile ngesinyathelo ngasinye nangokukhohlisa ngakunye lapho okwenziwe khona okwangempela, ngevidiyo yedijithali alukho uhlobo lokuphambuka noma lokugqoka phakathi kwezizukulwane.
Njengoba wazi, igama elithi ukukhiqizwa kwevidiyo lisetshenziselwa ukuchaza imiphumela yokukhohlisa okulandelanayo lapho ividiyo ibekwa khona. Lapho silahla okwangempela ku-pc, sinesizukulwane sokuqala. Uma silungisa umbala wesithombe ukuqeda ukusakazwa okuphuzi ngokwesibonelo, umphumela uzoba ividiyo yesizukulwane sesibili, njalonjalo. Kuvidiyo yakudala ye-analog, izizukulwane eziningi, ikhwalithi iyehla.
Ama-camcorder anendlela eyingqayizivele yokuthwebula izithombe. Abazibambi njengendawo eqhubekayo njengoba wazi. Bakwenza besebenzisa amaphikseli, okuyiyunithi lokulinganisa eliphansi. Ukuze benze lokhu, bahlukanisa isithombe sibe ngamanani amancane bese babela ngamunye wabo amanani ahlukahlukene wezibalo ngokususelwa ekukhanyeni kokukhanya nombala ovelele esiqeshaneni ngasinye. Iphikseli ngayinye ihambelana neseli eku-CCD. Imininingwane evela kuwo wonke amaseli iqoqwe yaba iphasela lolwazi elihambisana nesithombe esiphelele ukuze umprosesa wesithombe akwazi ukusakha kabusha kamuva. Ukwakhiwa kabusha kwenziwa iphuzu ngephuzu, kusibeka ngokulandelana nangemibala edingekayo namandla. Kuyinqubo ephothulwe ngezinkulungwane zesekhondi.
Gcina wazi ukuthi ukuze uqonde isignali yevidiyo, kufanele wazi imiqondo emibili: ukukhanya kanye ne-chrominance. Ukukhanya kubonisa ukukhanya kwesiginali, okuthile okufana nesithombe se-monochrome ngamandla aso ahlukahlukene ompunga. I-Chrominance inikeza imininingwane ngokuqina kombala wesithombe, kepha ngesilinganiso esinaso ngasinye se- imibala eyinhloko: obomvu, oluhlaza okotshani nokuhlaza okwesibhakabhaka.
Njengoba ukwazi ukubona, sikhuluma ngezithombe esikhundleni samavidiyo, sengathi ama-camcorder empeleni athatha izithombe; Ubungeke ube kude neqiniso uma ukuhumusha kanjalo. Uzokwazi ukuthi i-cinema akusona isithombe esihambayo, kodwa ukulandelana okusheshayo kwamafreyimu angama-24 ngomzuzwana. Ngenxa yesimo sokubona komuntu esibizwa Ukuphikelela kombonoAsikwazi ukubona ngeso lengqondo izithombe zodwa, kepha sizibona njengokuhamba okuqhubekayo. Kuyathakazelisa ngoba yize ngemuva kwamashumi eminyaka efilimu nethelevishini sifunde ukuhlukanisa lezi zithombe ezihambayo kweqiniso, ababukeli bokuqala abebehambele umbukiso wefilimu babaleke bethukile ngaphambi kwesitimela ebesiqonde esikrinini, ngoba bebengakafundi ukukhomba isithombe se-cinematic kusuka kwangempela. Empeleni lokhu kwenzeke ngenkathi kuqhakanjiswa ukuqoshwa kwabazalwane baseLumiere «Lukufika kwesitimela esiteshini se-la ciotat»
Iqiniso ukuthi ividiyo nefilimu ziyafana kakhulu, yize zehluka kubuchwepheshe bokubamba izithombe. Ama-emulsion esiliva asetshenziswa kumabhayisikobho, ngenkathi ividiyo isebenzisa ithuba lokukhanya ukuze liguqule libe ugesi futhi okuphambene nalokho. Kodwa-ke, lapho sibuka ifilimu yevidiyo, ayiqhubeki. Empeleni sibheka ukulandelana kwezithombe zedijithali, ngesilinganiso samafreyimu angama-25 ngomzuzwana. Isizathu ukuthi eSpain kusetshenziswa uhlelo lwethelevishini I-PAL (Umugqa Oshintshanayo Wesigaba), emele isithombe ngemigqa engama-625 evundlile, futhi ibonisa izithombe ezingama-25 ngomzuzwana. Impela nawe uzwile ngohlelo I-NTCS (IKomidi Likazwelonke Lezinhlelo Zethelevishini), isakazwa yi-United States neJapan, ekhombisa izithombe ezingama-30 ngomzuzwana zemigqa engama-575 lilinye. Ochwepheshe babiza ngasinye salezi zithombe ngokuthi "isithombe", ukuhunyushwa kwegama lesiNgisi ifreyimu.
Inohlonze impela. Ngibona kakhulu.